Gr 8 Natural Sciences Term Test 3
422 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is responsible for the resistance against the movement of an object resulting from its contact with another object?

  • Neutrons
  • Protons
  • Friction (correct)
  • Electrons

What happens to an object when it loses electrons due to friction?

  • It becomes neutrally charged
  • It becomes positively charged (correct)
  • It remains unchanged
  • It becomes negatively charged

What is the normal state of an atom?

  • Neutrally charged (correct)
  • Unstable
  • Positively charged
  • Negatively charged

What is the result of two objects with opposite charges coming together?

<p>They attract each other (A)</p> Signup and view all the answers

What is the charge of neutrons?

<p>No charge (C)</p> Signup and view all the answers

What is the cause of static electricity?

<p>Electrons transferring from one object to another (C)</p> Signup and view all the answers

What happens when two objects with the same charge interact?

<p>They repel each other (B)</p> Signup and view all the answers

What is the result of combing your hair with a plastic comb?

<p>Your hair stands on end and produces crackling sounds (C)</p> Signup and view all the answers

What is the primary function of a battery in a circuit?

<p>To provide energy for the current (A)</p> Signup and view all the answers

What happens to the flow of current when a switch is open?

<p>The current stops flowing (B)</p> Signup and view all the answers

What is the purpose of a light bulb in a circuit?

<p>To act as a load and convert electrical energy into light energy (C)</p> Signup and view all the answers

What is the difference between a series circuit and a parallel circuit?

<p>A series circuit has a single path, while a parallel circuit has multiple paths (C)</p> Signup and view all the answers

What is the purpose of a resistor in a circuit?

<p>To convert electrical energy into heat energy (B)</p> Signup and view all the answers

What is represented by a pair of parallel lines in a circuit diagram?

<p>A cell or battery (A)</p> Signup and view all the answers

What happens when a component fails in a series circuit?

<p>The entire circuit is broken (D)</p> Signup and view all the answers

What is the function of wires in a circuit?

<p>To conduct current between components (C)</p> Signup and view all the answers

What is the rating for AAA, AA, C, and D cells?

<p>1.5V (C)</p> Signup and view all the answers

What is the unit of measurement for resistance?

<p>Ohms (A)</p> Signup and view all the answers

What is the purpose of electroplating?

<p>To improve the appearance, durability, and resistance to corrosion of an object (C)</p> Signup and view all the answers

What is the characteristic of electric current in a series circuit?

<p>Current is the same at all points in the circuit (B)</p> Signup and view all the answers

What happens when more resistors are added in series?

<p>Total resistance of the circuit increases (C)</p> Signup and view all the answers

What is the unit of measurement for electric current?

<p>Ampere (C)</p> Signup and view all the answers

What is the purpose of an ammeter?

<p>To measure the electric current in a circuit (D)</p> Signup and view all the answers

What happens when more cells are connected in series?

<p>Total voltage increases (C)</p> Signup and view all the answers

What is the characteristic of a parallel circuit?

<p>There are multiple pathways for the electric current to follow (D)</p> Signup and view all the answers

What is the result of closing a circuit?

<p>Electrons start moving simultaneously (B)</p> Signup and view all the answers

What is the symbol for an ammeter in a circuit diagram?

<p>A circle with the letter 'A' inside it (A)</p> Signup and view all the answers

Why does an ammeter have low resistance?

<p>To not significantly affect the current flowing through the circuit (D)</p> Signup and view all the answers

What is common about the voltage across each component in a parallel circuit?

<p>It is the same (B)</p> Signup and view all the answers

What happens to the total resistance of a circuit when more resistors are added in parallel?

<p>It decreases (D)</p> Signup and view all the answers

What is the total current supplied by the battery in a parallel circuit?

<p>The sum of the currents through each branch (C)</p> Signup and view all the answers

What is a characteristic of LEDs?

<p>They do not have a filament and are energy efficient (C)</p> Signup and view all the answers

What is an application of LEDs?

<p>Used in various electronic applications such as electronic timepieces, televisions, and home lighting (D)</p> Signup and view all the answers

What is the result of adding more cells in parallel?

<p>The overall voltage of the circuit remains the same (C)</p> Signup and view all the answers

What is true about the current in parallel branches if they have identical components?

<p>The current will divide equally among the branches (C)</p> Signup and view all the answers

What is the energy conversion process in LEDs?

<p>Electrical energy is converted directly into light energy (C)</p> Signup and view all the answers

What is the primary benefit of LEDs over other light sources?

<p>They provide more light per unit of electricity consumed. (C)</p> Signup and view all the answers

What is a difference between LEDs and incandescent light bulbs?

<p>LEDs produce very little heat and consume less electricity than incandescent light bulbs (D)</p> Signup and view all the answers

What is an example of a luminous object?

<p>The Sun (B)</p> Signup and view all the answers

Why are LEDs more efficient than incandescent light bulbs?

<p>They convert a significant portion of electrical energy into light energy (D)</p> Signup and view all the answers

What is the term for the transfer of energy through space as electromagnetic waves?

<p>Radiation (A)</p> Signup and view all the answers

How does light travel through space?

<p>In straight lines (A)</p> Signup and view all the answers

What is the purpose of the pinhole camera activity?

<p>To understand how light travels (C)</p> Signup and view all the answers

What is the range of wavelengths of light that are visible to the human eye?

<p>Visible spectrum (A)</p> Signup and view all the answers

What is the color with the longest wavelength and lowest frequency in the visible spectrum?

<p>Red (A)</p> Signup and view all the answers

What happens when the colors of the visible spectrum are combined?

<p>They form white light (A)</p> Signup and view all the answers

What is the term for the process of separating a wave, such as light, into its constituent parts?

<p>Dispersion (C)</p> Signup and view all the answers

What is the speed at which light travels?

<p>300,000 kilometers per second (C)</p> Signup and view all the answers

What is the purpose of a sundial?

<p>To tell time (A)</p> Signup and view all the answers

What happens when light hits an opaque object?

<p>It casts a shadow (D)</p> Signup and view all the answers

What is the purpose of a filter?

<p>To allow specific colors of light to pass through (B)</p> Signup and view all the answers

What is absorption of light?

<p>The process by which a material takes in light energy (A)</p> Signup and view all the answers

Why do black surfaces become hotter than white surfaces when exposed to sunlight?

<p>Because they absorb more light energy (A)</p> Signup and view all the answers

What happens to light when it hits a mirror?

<p>It is reflected (B)</p> Signup and view all the answers

Why do ladybirds' black spots appear black?

<p>Because they absorb all colors of light (C)</p> Signup and view all the answers

What is the purpose of a red filter?

<p>To allow only red light to pass through (D)</p> Signup and view all the answers

Why do white objects appear white?

<p>Because they reflect all colors of light (B)</p> Signup and view all the answers

What happens when light hits a translucent object?

<p>It passes through partially (A)</p> Signup and view all the answers

What is the function of rods in the eye?

<p>To detect light and dark changes (D)</p> Signup and view all the answers

What happens to light when it enters a different medium at an angle?

<p>It changes direction (B)</p> Signup and view all the answers

What is the purpose of the optic nerve?

<p>To transmit electrical impulses to the brain (B)</p> Signup and view all the answers

What is the term for the bending of light as it passes from one medium to another?

<p>Refraction (C)</p> Signup and view all the answers

What determines how much a medium slows down light?

<p>Optical density (C)</p> Signup and view all the answers

What is the result of light traveling from a less dense medium to a denser medium?

<p>It slows down (D)</p> Signup and view all the answers

What is the purpose of cone cells in the retina?

<p>To detect color (D)</p> Signup and view all the answers

What happens to white light when it passes through a prism?

<p>It is refracted and split into its component colors (D)</p> Signup and view all the answers

What is the purpose of the lens in the eye?

<p>To focus light onto the retina (D)</p> Signup and view all the answers

What is the result of placing a straw in a glass of water?

<p>It appears to be bent (A)</p> Signup and view all the answers

What happens when you rub a balloon on your hair?

<p>Electrons transfer from your hair to the balloon, making your hair positively charged and the balloon negatively charged. (B)</p> Signup and view all the answers

What is the purpose of earthing?

<p>To safely discharge extra electrons from an object into the Earth. (C)</p> Signup and view all the answers

What is an electric current?

<p>The movement of electric charge through a closed, conducting circuit. (C)</p> Signup and view all the answers

What is the role of a conductor in an electric circuit?

<p>To allow the flow of electric current. (B)</p> Signup and view all the answers

What is the function of a switch in an electric circuit?

<p>To control the flow of electric current. (B)</p> Signup and view all the answers

What is the purpose of a resistor in an electric circuit?

<p>To convert electrical energy into heat. (A)</p> Signup and view all the answers

What is the difference between a conductor and an insulator?

<p>Conductors allow the flow of electric current, while insulators do not. (A)</p> Signup and view all the answers

What is the purpose of a Van de Graaff generator?

<p>To generate a large electric charge on a metal dome. (D)</p> Signup and view all the answers

What is the purpose of an electroscope?

<p>To detect the presence and type of charge on an object. (C)</p> Signup and view all the answers

What is a necessary component of an electric circuit?

<p>A source of energy. (B)</p> Signup and view all the answers

What symbol is used to represent a battery in a circuit diagram?

<p>Multiple sets of parallel lines (B)</p> Signup and view all the answers

What is the function of a fuse in an electrical circuit?

<p>To protect the circuit from overheating (B)</p> Signup and view all the answers

What happens when an electric current flows through a resistor?

<p>It converts electrical energy into heat (C)</p> Signup and view all the answers

What is the purpose of a circuit breaker in a modern home?

<p>To protect the circuit from damage by stopping the current flow during overloads or short circuits (B)</p> Signup and view all the answers

What is the principle behind the operation of electromagnets?

<p>The magnetic effect of electric current (B)</p> Signup and view all the answers

What is the result of electrolysis of copper chloride solution?

<p>The separation of copper and chlorine (C)</p> Signup and view all the answers

What is the function of the filament in a light bulb?

<p>To convert electrical energy into heat (A)</p> Signup and view all the answers

What is the purpose of the heating element in a kettle?

<p>To convert electrical energy into heat (C)</p> Signup and view all the answers

What is represented by a circle with a cross inside in a circuit diagram?

<p>A light bulb (A)</p> Signup and view all the answers

What is the effect of electric current on a solution during electrolysis?

<p>It breaks down the solution into its component elements (D)</p> Signup and view all the answers

What occurs when light passes through a prism?

<p>Light is split into its constituent colors (C)</p> Signup and view all the answers

What is the longest wavelength of visible light?

<p>700 nanometers (A)</p> Signup and view all the answers

What type of light is used in forensics and to sterilize medical equipment?

<p>Ultraviolet light (B)</p> Signup and view all the answers

What is the term for substances that do not transmit light?

<p>Opaque (C)</p> Signup and view all the answers

What happens to light when it hits an opaque surface?

<p>It is reflected by the surface (A)</p> Signup and view all the answers

What is the frequency of a wave?

<p>The number of waves that pass a point in one second (D)</p> Signup and view all the answers

What is the purpose of a prism in an experiment?

<p>To split light into its constituent colors (A)</p> Signup and view all the answers

What type of light is felt as heat?

<p>Infrared light (D)</p> Signup and view all the answers

What is the term for substances that transmit some light but not enough to see through clearly?

<p>Translucent (D)</p> Signup and view all the answers

What is the result of light passing through a transparent substance?

<p>The light passes through the substance with little absorption or reflection (B)</p> Signup and view all the answers

What occurs when light enters a raindrop?

<p>It is refracted and dispersed (B)</p> Signup and view all the answers

What is the purpose of a converging lens?

<p>To focus light rays to a point (B)</p> Signup and view all the answers

What type of lens is used to correct near-sightedness?

<p>Diverging lens (biconcave) (D)</p> Signup and view all the answers

What happens to light as it exits a raindrop?

<p>It is refracted again (A)</p> Signup and view all the answers

What is the purpose of the normal line in understanding reflection?

<p>To draw an imaginary line perpendicular to the surface at the point of incidence (A)</p> Signup and view all the answers

What is an application of lenses?

<p>Correcting vision and magnifying images (D)</p> Signup and view all the answers

What is the law of reflection?

<p>The angle of incidence is equal to the angle of reflection (C)</p> Signup and view all the answers

What is the result of refraction and dispersion in a raindrop?

<p>A rainbow (D)</p> Signup and view all the answers

What is the function of the cornea in the eye?

<p>To focus light (B)</p> Signup and view all the answers

What is the process of light entering the eye?

<p>Light entry (A)</p> Signup and view all the answers

What is the function of photoreceptor cells in the retina?

<p>To detect light (B)</p> Signup and view all the answers

What is the result of light reflecting off a smooth surface?

<p>A clear and focused image (D)</p> Signup and view all the answers

What is the function of the iris in the eye?

<p>To change the pupil's size (B)</p> Signup and view all the answers

What is the angle between the incident ray and the normal line?

<p>Angle of incidence (B)</p> Signup and view all the answers

What is the result of light reflecting off a rough surface?

<p>A diffuse and unclear reflection (A)</p> Signup and view all the answers

What is the purpose of the lens in the eye?

<p>To focus light (D)</p> Signup and view all the answers

When a comb is dragged through hair, what happens to the electrons?

<p>They move from the hair to the comb (D)</p> Signup and view all the answers

What is the result of an object gaining more electrons than protons?

<p>The object becomes negatively charged (A)</p> Signup and view all the answers

Why do objects with the same charge repel each other?

<p>Because they have the same type of charge (D)</p> Signup and view all the answers

What is the term for the resistance against the movement of an object resulting from its contact with another object?

<p>Friction (B)</p> Signup and view all the answers

What happens when two objects with opposite charges interact?

<p>They attract each other (D)</p> Signup and view all the answers

What is the normal state of an atom?

<p>Neutral (C)</p> Signup and view all the answers

What is the result of combing your hair with a plastic comb?

<p>Your hair becomes negatively charged (B)</p> Signup and view all the answers

What is the purpose of friction in the context of static electricity?

<p>To transfer electrons (C)</p> Signup and view all the answers

What happens when there is a significant build-up of charge on an object?

<p>A spark is produced through contact or across an air gap. (A)</p> Signup and view all the answers

What is the purpose of earthing an object?

<p>To safely discharge extra electrons from the object. (C)</p> Signup and view all the answers

What is an electric current?

<p>The movement of electric charge through a closed, conducting circuit. (A)</p> Signup and view all the answers

What is the function of a conductor in a circuit?

<p>To allow the flow of electric current. (A)</p> Signup and view all the answers

What is the purpose of a switch in a circuit?

<p>To control the flow of current in the circuit. (B)</p> Signup and view all the answers

What is the purpose of a load in a circuit?

<p>To use the electrical energy. (D)</p> Signup and view all the answers

What is a characteristic of metals?

<p>Electrons are free to move and are not bound to any specific atom. (A)</p> Signup and view all the answers

What is the function of an electroscope?

<p>To detect the presence and type of charge on an object. (D)</p> Signup and view all the answers

What is a Van de Graaff generator used for?

<p>To generate a large electric charge on a metal dome. (D)</p> Signup and view all the answers

What is required for an electric current to flow?

<p>A closed, conducting circuit. (A)</p> Signup and view all the answers

What is the main purpose of electroplating?

<p>To improve the appearance and durability of a metal object (D)</p> Signup and view all the answers

In a series circuit, what happens to the total resistance when more resistors are added?

<p>It increases (A)</p> Signup and view all the answers

What is the function of an ammeter in a circuit?

<p>To measure the current of a circuit (C)</p> Signup and view all the answers

In a parallel circuit, what is true about the voltage across each component?

<p>It is the same for each component (D)</p> Signup and view all the answers

What happens to the current in a series circuit when more resistors are added?

<p>It decreases (C)</p> Signup and view all the answers

What is the characteristic of electric current in a series circuit?

<p>It has a single pathway (C)</p> Signup and view all the answers

What is the purpose of connecting cells in series?

<p>To increase the total voltage (A)</p> Signup and view all the answers

Why does an ammeter have low resistance?

<p>So it can measure current accurately (B)</p> Signup and view all the answers

What is the main difference between a series circuit and a parallel circuit?

<p>The pathway of the electric current in the circuit (D)</p> Signup and view all the answers

What happens when a component fails in a series circuit?

<p>The entire circuit is affected (D)</p> Signup and view all the answers

What is the primary benefit of LEDs over other light sources?

<p>They provide more light per unit of electricity consumed and generate less heat (C)</p> Signup and view all the answers

What is the term for objects that emit light?

<p>Luminous (C)</p> Signup and view all the answers

How does light travel through space?

<p>In straight lines (D)</p> Signup and view all the answers

What is the range of wavelengths of light that are visible to the human eye?

<p>Visible spectrum (C)</p> Signup and view all the answers

What is the color with the longest wavelength and lowest frequency in the visible spectrum?

<p>Red (B)</p> Signup and view all the answers

What happens when the colors of the visible spectrum are combined?

<p>They form white light (C)</p> Signup and view all the answers

What is the term for the process of separating a wave, such as light, into its constituent parts?

<p>Dispersion (C)</p> Signup and view all the answers

What is the speed at which light travels?

<p>300,000 kilometers per second (C)</p> Signup and view all the answers

What is the purpose of the pinhole camera activity?

<p>To understand how light travels in straight lines (C)</p> Signup and view all the answers

What is an example of a luminous object?

<p>All of the above (D)</p> Signup and view all the answers

What is the function of the cornea in the human eye?

<p>To focus light onto the retina (B)</p> Signup and view all the answers

What is the law of reflection?

<p>The angle of incidence is equal to the angle of reflection (A)</p> Signup and view all the answers

What is the purpose of the normal line in understanding reflection?

<p>To draw an imaginary line perpendicular to the surface at the point of incidence (A)</p> Signup and view all the answers

What is the term for the light-sensitive cells in the retina?

<p>Photoreceptor cells (C)</p> Signup and view all the answers

What is the function of the pupil in the human eye?

<p>To open and close to regulate light entry (A)</p> Signup and view all the answers

What is the characteristic of a smooth surface in terms of reflection?

<p>It reflects light uniformly, creating a clear image (A)</p> Signup and view all the answers

What is the purpose of the retina in the human eye?

<p>To convert light into electrical signals (C)</p> Signup and view all the answers

What is the angle of incidence?

<p>The angle between the incident ray and the normal line (A)</p> Signup and view all the answers

What is the result of reflection off a rough surface?

<p>A diffuse and unclear reflection (B)</p> Signup and view all the answers

What is the term for the process of light entering the eye?

<p>Refraction (D)</p> Signup and view all the answers

What occurs when light enters a raindrop, creating a rainbow?

<p>Dispersion and reflection (A)</p> Signup and view all the answers

What is the purpose of a converging lens?

<p>To focus light rays to a point (B)</p> Signup and view all the answers

What is used to correct near-sightedness?

<p>Diverging lenses (A)</p> Signup and view all the answers

What is the main application of lenses?

<p>To correct vision and magnify images (B)</p> Signup and view all the answers

What type of lens is used to correct far-sightedness?

<p>Converging lens (D)</p> Signup and view all the answers

What is the process by which light is separated into its constituent parts?

<p>Dispersion (C)</p> Signup and view all the answers

What is the primary function of a switch in a circuit?

<p>To control the flow of current (D)</p> Signup and view all the answers

What happens when a circuit is broken?

<p>The current stops flowing through the circuit (A)</p> Signup and view all the answers

What is the purpose of building a simple circuit?

<p>To demonstrate the concept of open and closed circuits (B)</p> Signup and view all the answers

What is the difference between a cell and a battery?

<p>A battery is a group of cells connected together (A)</p> Signup and view all the answers

What is the purpose of a resistor in a circuit?

<p>To convert electrical energy into heat energy (B)</p> Signup and view all the answers

What is the characteristic of a series circuit?

<p>A single path for the current to flow (B)</p> Signup and view all the answers

What happens when a component fails in a parallel circuit?

<p>The current flows through the other paths (D)</p> Signup and view all the answers

What is the purpose of wires in a circuit?

<p>To conduct the current between components (B)</p> Signup and view all the answers

What is the result of closing a circuit?

<p>The light bulb lights up (D)</p> Signup and view all the answers

What is the primary benefit of understanding electric circuits?

<p>To explore more complex electrical systems and practical applications (A)</p> Signup and view all the answers

What is the main characteristic of a parallel circuit?

<p>Components are connected across common points or junctions, creating multiple paths for the current. (A)</p> Signup and view all the answers

What happens to the total resistance of a circuit when more resistors are added in parallel?

<p>The total resistance decreases. (A)</p> Signup and view all the answers

What is the relationship between the total current and branch currents in a parallel circuit?

<p>A1 = A2 + A3 (D)</p> Signup and view all the answers

What is a characteristic of LEDs?

<p>They emit light through electroluminescence. (B)</p> Signup and view all the answers

What happens to the current in parallel branches if they have identical components?

<p>The current will divide equally among the branches. (A)</p> Signup and view all the answers

What is the purpose of a light bulb in a circuit?

<p>To convert electrical energy into light energy. (B)</p> Signup and view all the answers

What is the result of adding more cells in parallel?

<p>The total current of the circuit remains the same. (A)</p> Signup and view all the answers

What is the energy conversion process in LEDs?

<p>Electrical energy → Light energy (B)</p> Signup and view all the answers

What is the primary benefit of LEDs over other light sources?

<p>They consume less electricity. (A)</p> Signup and view all the answers

What is a difference between LEDs and incandescent light bulbs?

<p>Incandescent bulbs have a filament, while LEDs do not. (B)</p> Signup and view all the answers

What is the primary reason why we see a rainbow when light passes through raindrops in the atmosphere?

<p>Different wavelengths of light bend by different amounts (B)</p> Signup and view all the answers

What is the term for the distance between two corresponding points on consecutive waves of light?

<p>Wavelength (A)</p> Signup and view all the answers

What type of electromagnetic wave has a shorter wavelength and higher frequency than visible light?

<p>Ultraviolet (UV) Light (C)</p> Signup and view all the answers

What is the term for substances that do not transmit light, and instead reflect or absorb it?

<p>Opaque (D)</p> Signup and view all the answers

What happens when light hits a transparent substance?

<p>It passes through the substance with little absorption or reflection (B)</p> Signup and view all the answers

What is an example of a translucent substance?

<p>Cellophane (D)</p> Signup and view all the answers

What is the term for the process of separating a wave, such as light, into its constituent parts?

<p>Dispersion (C)</p> Signup and view all the answers

What is the range of wavelengths of light that are visible to the human eye?

<p>400-700 nanometers (D)</p> Signup and view all the answers

What is the color with the shortest wavelength and highest frequency in the visible spectrum?

<p>Violet (A)</p> Signup and view all the answers

What is the result of combining the colors of the visible spectrum?

<p>White light (A)</p> Signup and view all the answers

What is the function of a fuse in an electrical circuit?

<p>To protect electrical circuits from overheating (D)</p> Signup and view all the answers

What is the symbol for a resistor in a circuit diagram?

<p>A zigzag line (A)</p> Signup and view all the answers

What is the purpose of a variable resistor in a circuit?

<p>To increase or decrease the current in a circuit (B)</p> Signup and view all the answers

What happens when an electric current flows through a resistor?

<p>The resistor converts electrical energy into heat (D)</p> Signup and view all the answers

What is the term for the process of passing an electric current through a liquid or solution to break it down into its component elements?

<p>Electrolysis (C)</p> Signup and view all the answers

What is the purpose of a circuit breaker in an electrical circuit?

<p>To protect electrical circuits from damage by stopping the current flow during overloads or short circuits (B)</p> Signup and view all the answers

What is the effect of an electric current on the filament in a light bulb?

<p>It causes the filament to heat up and emit light (A)</p> Signup and view all the answers

What is the function of an electromagnet in a device such as an electric bell?

<p>To create a magnetic field that vibrates a diaphragm to produce sound (A)</p> Signup and view all the answers

What is the result of the heating effect of an electric current?

<p>The conversion of electrical energy into heat (C)</p> Signup and view all the answers

What is the purpose of a switch in an electrical circuit?

<p>To control the flow of current in a circuit (A)</p> Signup and view all the answers

What is the primary purpose of using a transparent object as a filter?

<p>To allow specific colors of light to pass through (D)</p> Signup and view all the answers

What happens when light hits an object with a transparent surface?

<p>The light passes through the object (D)</p> Signup and view all the answers

What is the main difference between a black object and a white object?

<p>Black objects absorb all colors of light, while white objects reflect all colors of light (C)</p> Signup and view all the answers

Why do black clothes make you feel hotter on a sunny day?

<p>Because black clothes absorb more light and convert it into heat (A)</p> Signup and view all the answers

What is the purpose of using a red filter in photography?

<p>To absorb all colors of light except red (A)</p> Signup and view all the answers

What is the result of an object absorbing all colors of light?

<p>The object appears black (D)</p> Signup and view all the answers

What is the principle behind the use of shadows to tell time with a sundial?

<p>The shadow of the sundial's gnomon moves across its marked surface as the Sun moves across the sky (C)</p> Signup and view all the answers

What is the function of a mirror?

<p>To reflect light with minimal absorption (C)</p> Signup and view all the answers

Why are solar panels usually black?

<p>Because black surfaces absorb the maximum amount of light (B)</p> Signup and view all the answers

What is the result of light hitting a translucent substance?

<p>The light passes through the substance, but is scattered (C)</p> Signup and view all the answers

What type of photoreceptor cells are sensitive to shape, movement, and light and dark changes?

<p>Rod cells (B)</p> Signup and view all the answers

What happens to light when it travels from one medium to another?

<p>It changes direction (C)</p> Signup and view all the answers

What is the purpose of the lens in the eye?

<p>To focus light onto the retina (D)</p> Signup and view all the answers

What is the name of the process by which light is separated into its component colors?

<p>Dispersion (B)</p> Signup and view all the answers

What determines how much a medium slows down light?

<p>Optical density (C)</p> Signup and view all the answers

What appears to happen to a straw in a glass of water?

<p>It appears bent (A)</p> Signup and view all the answers

What is the function of the optic nerve?

<p>To transmit signals to the brain (B)</p> Signup and view all the answers

What is the term for the bending of light as it passes from one medium to another?

<p>Refraction (B)</p> Signup and view all the answers

What determines the color of an object?

<p>The wavelength of light it reflects (C)</p> Signup and view all the answers

What happens to light when it enters a different medium at an angle?

<p>It changes direction (D)</p> Signup and view all the answers

What occurs when an object gains electrons due to friction?

<p>The object becomes negatively charged. (C)</p> Signup and view all the answers

What is the result of two objects with the same charge interacting?

<p>They repel each other. (C)</p> Signup and view all the answers

What causes an atom to be neutral?

<p>An equal number of protons and electrons. (B)</p> Signup and view all the answers

What is the purpose of friction in the context of static electricity?

<p>To transfer electrons between objects. (D)</p> Signup and view all the answers

What is the term for the forces that hold the nucleus of an atom together?

<p>Strong forces. (A)</p> Signup and view all the answers

What is the net result of combing your hair with a plastic comb?

<p>Electrons are transferred from the hair to the comb. (B)</p> Signup and view all the answers

What is the characteristic of an object that has more protons than electrons?

<p>It is positively charged. (C)</p> Signup and view all the answers

What is the reason behind the attraction between two objects with opposite charges?

<p>Opposite charges attract each other. (A)</p> Signup and view all the answers

What is the primary function of a fuse in an electrical circuit?

<p>To protect the circuit from overheating (C)</p> Signup and view all the answers

What is the effect of electric current on a resistor?

<p>It converts electrical energy into heat (D)</p> Signup and view all the answers

What is the purpose of electrolysis in electroplating?

<p>To purify metals (D)</p> Signup and view all the answers

What is the effect of an electric current on a light bulb?

<p>It converts electrical energy into light (B)</p> Signup and view all the answers

What is the purpose of a circuit breaker in an electrical circuit?

<p>To protect the circuit from overheating (A)</p> Signup and view all the answers

What is the effect of electric current on a kettle?

<p>It converts electrical energy into heat (B)</p> Signup and view all the answers

What is the purpose of a resistor in a circuit diagram?

<p>To represent a resistor or resistance in the circuit (D)</p> Signup and view all the answers

What is the effect of electric current on a magnet?

<p>It creates a magnetic field around the magnet (B)</p> Signup and view all the answers

What is the purpose of a variable resistor in a circuit?

<p>To vary the resistance in the circuit (C)</p> Signup and view all the answers

What is the effect of electric current on a solution?

<p>It causes a chemical reaction in the solution (A)</p> Signup and view all the answers

What is the primary reason why shadows are created?

<p>Because light cannot pass through opaque objects (A)</p> Signup and view all the answers

What is the purpose of using a red filter in photography?

<p>To transmit only red light and absorb other colors (C)</p> Signup and view all the answers

What happens to light energy when it hits a black object?

<p>It is absorbed and converted into heat (A)</p> Signup and view all the answers

What is the reason why solar panels are usually black?

<p>Because black surfaces absorb the maximum amount of light (A)</p> Signup and view all the answers

What is the difference between a blackboard and a whiteboard?

<p>A blackboard absorbs most of the light, while a whiteboard reflects most of the light (C)</p> Signup and view all the answers

What is the characteristic of light that allows us to see objects and create mirror images?

<p>Reflection (C)</p> Signup and view all the answers

What is the reason why wearing black clothes on a sunny day can make you feel hotter?

<p>Because black clothes absorb most of the sunlight (D)</p> Signup and view all the answers

What is the term for the process by which a material takes in light energy?

<p>Absorption (D)</p> Signup and view all the answers

What is the characteristic of light that allows it to travel through space?

<p>Traveling in straight lines (A)</p> Signup and view all the answers

What is the purpose of using a sundial?

<p>To tell time (B)</p> Signup and view all the answers

What is the primary function of the normal line in the context of reflection?

<p>To draw a perpendicular line to the surface at the point of incidence (B)</p> Signup and view all the answers

What type of surface would produce a diffuse reflection?

<p>Rough surface (C)</p> Signup and view all the answers

What is the term for the bending of light as it passes from one medium to another?

<p>Refraction (B)</p> Signup and view all the answers

What is the primary function of the lens in the eye?

<p>To focus light (C)</p> Signup and view all the answers

What is the term for the light-sensitive cells in the retina?

<p>Photoreceptors (B)</p> Signup and view all the answers

What is the result of the law of reflection?

<p>The angle of incidence is equal to the angle of reflection (A)</p> Signup and view all the answers

What is the primary function of the cornea?

<p>To focus light (D)</p> Signup and view all the answers

What is the purpose of the pupil?

<p>To regulate the amount of light that enters the eye (A)</p> Signup and view all the answers

What is the term for the process of light entering the eye?

<p>Light entry (D)</p> Signup and view all the answers

What is the primary function of the retina?

<p>To convert light into electrical signals (A)</p> Signup and view all the answers

What occurs when light enters a raindrop?

<p>It refracts and is split into its component colors. (B)</p> Signup and view all the answers

What is the purpose of a converging lens?

<p>To bend light rays inward to a focal point. (C)</p> Signup and view all the answers

What type of lens is used to correct near-sightedness?

<p>Diverging lens (biconcave) (D)</p> Signup and view all the answers

What happens to light as it exits a raindrop?

<p>It refracts and is split into its component colors. (A)</p> Signup and view all the answers

What is the main application of lenses?

<p>To correct vision and magnify images. (D)</p> Signup and view all the answers

What is the result of the refraction and reflection of light in a raindrop?

<p>A rainbow with its component colors. (C)</p> Signup and view all the answers

What is the primary function of a closed circuit?

<p>To enable the flow of electric current. (D)</p> Signup and view all the answers

What is the effect on a parallel circuit if one component fails?

<p>The current can still flow through the other paths. (B)</p> Signup and view all the answers

What is the purpose of a switch in a circuit?

<p>To control the flow of current. (A)</p> Signup and view all the answers

What is the advantage of using a variable resistor?

<p>It enables the dynamic control of current flow. (A)</p> Signup and view all the answers

What is the function of wires in a circuit?

<p>To conduct the current between the components. (B)</p> Signup and view all the answers

What is true about the flow of current in a series circuit?

<p>It is affected by the resistance of each component. (A)</p> Signup and view all the answers

What is the effect of connecting more cells in series?

<p>The total voltage increases. (B)</p> Signup and view all the answers

What is true about the current in a parallel circuit?

<p>It is not affected by the failure of one component. (B)</p> Signup and view all the answers

What is the purpose of a resistor in a circuit?

<p>To oppose the flow of electric current. (C)</p> Signup and view all the answers

What is the effect of adding more resistors in parallel?

<p>The total resistance decreases. (B)</p> Signup and view all the answers

In a parallel circuit, what is the relationship between the total current and the current through each branch?

<p>The total current is the sum of the currents through each branch. (D)</p> Signup and view all the answers

What is the primary benefit of using LEDs over incandescent light bulbs?

<p>LEDs are more efficient and produce less heat. (A)</p> Signup and view all the answers

What is the primary reason for electroplating a metal object?

<p>To improve the object's appearance, durability, and resistance to corrosion (A)</p> Signup and view all the answers

What happens to the total resistance of a circuit when more resistors are added in parallel?

<p>The total resistance decreases. (C)</p> Signup and view all the answers

What is the key difference between a series circuit and a parallel circuit?

<p>The pathway of electric current in the circuit (D)</p> Signup and view all the answers

What is the characteristic of electric current in a parallel circuit?

<p>The current through each branch is the same. (D)</p> Signup and view all the answers

What is the term for the process of converting electrical energy directly into light energy in LEDs?

<p>Electroluminescence. (A)</p> Signup and view all the answers

What happens to the total resistance of a series circuit when more resistors are added?

<p>It increases (B)</p> Signup and view all the answers

What is the purpose of an ammeter in a circuit?

<p>To measure the electric current in the circuit (D)</p> Signup and view all the answers

What happens to the current strength when more cells are added in parallel?

<p>The current strength remains the same. (D)</p> Signup and view all the answers

What is the result of adding more resistors in parallel to a circuit?

<p>The total current increases. (B)</p> Signup and view all the answers

What happens to the electric current in a series circuit when more cells are added?

<p>It increases, provided the total resistance remains constant (B)</p> Signup and view all the answers

What is the characteristic of the voltage across each component in a parallel circuit?

<p>The voltage across each component is the same. (D)</p> Signup and view all the answers

What is a characteristic of electron movement in a conductor?

<p>Electrons move freely within the metal (C)</p> Signup and view all the answers

What is the symbol for an ammeter in a circuit diagram?

<p>A circle with the letter 'A' inside (C)</p> Signup and view all the answers

What is the benefit of using parallel circuits over series circuits?

<p>Parallel circuits are less prone to component failure. (C)</p> Signup and view all the answers

Why does an ammeter have low resistance?

<p>So that it does not significantly affect the current flowing through the circuit (D)</p> Signup and view all the answers

What is the purpose of using multiple exits in a school hall?

<p>To allow students to exit more quickly and efficiently. (B)</p> Signup and view all the answers

What is a characteristic of a parallel circuit?

<p>There is more than one pathway for electric current (C)</p> Signup and view all the answers

What happens when a component fails in a series circuit?

<p>The circuit is broken and the current stops flowing (C)</p> Signup and view all the answers

What is the primary reason for the separation of colors when light passes through a prism?

<p>Due to the difference in the wavelengths of the colors (B)</p> Signup and view all the answers

What is the primary reason why LEDs are preferred in many applications?

<p>They provide more light per unit of electricity consumed and generate less heat (B)</p> Signup and view all the answers

What type of waves are used in forensics and to sterilize medical equipment?

<p>Ultraviolet (UV) light (B)</p> Signup and view all the answers

What happens to light when it hits a translucent substance?

<p>It is scattered in different directions (C)</p> Signup and view all the answers

What is the term for objects that emit light?

<p>Luminous (C)</p> Signup and view all the answers

What is the process of separating a wave, such as light, into its constituent parts?

<p>Dispersion (A)</p> Signup and view all the answers

What is the shortest wavelength and highest frequency light in the visible spectrum?

<p>Violet light (D)</p> Signup and view all the answers

What is the purpose of the activity involving a prism and a light source?

<p>To investigate the visible spectrum (D)</p> Signup and view all the answers

What is the color with the shortest wavelength and highest frequency in the visible spectrum?

<p>Violet (C)</p> Signup and view all the answers

What is the term for the distance between two corresponding points on consecutive waves?

<p>Wavelength (B)</p> Signup and view all the answers

What is the approximate time it takes for light to travel from the Sun to the Earth?

<p>8 minutes (C)</p> Signup and view all the answers

What is the purpose of lining the inside of the pinhole camera box with black paper?

<p>To minimize reflections (C)</p> Signup and view all the answers

What type of electromagnetic waves are used for cooking and satellite transmissions?

<p>Microwaves (C)</p> Signup and view all the answers

What is the characteristic of light when it passes through a transparent substance?

<p>It passes through with little absorption or reflection (C)</p> Signup and view all the answers

What is the result of combining the colors of the visible spectrum?

<p>White light (C)</p> Signup and view all the answers

What is the term for the movement of light through space?

<p>Propagation (C)</p> Signup and view all the answers

What is the process of separating a wave, such as light, into its constituent parts?

<p>Dispersion (B)</p> Signup and view all the answers

What is the speed at which light travels?

<p>300,000 kilometers per second (D)</p> Signup and view all the answers

What happens when light hits an opaque substance?

<p>It is absorbed or reflected (B)</p> Signup and view all the answers

What is the term for objects that do not emit their own light?

<p>Non-Luminous (D)</p> Signup and view all the answers

What is the primary reason for the buildup of charge on an object through friction?

<p>The transfer of electrons from one object to another (D)</p> Signup and view all the answers

What is the purpose of earthing an object?

<p>To safely discharge excess electrons from the object (D)</p> Signup and view all the answers

What is the function of a Van de Graaff generator?

<p>To generate a large electric charge on a metal dome (D)</p> Signup and view all the answers

What is the characteristic of electric current in a metal?

<p>The flow of electric charge is carried by delocalized electrons (B)</p> Signup and view all the answers

What is the purpose of a conductor in an electric circuit?

<p>To allow the flow of electric current through the circuit (A)</p> Signup and view all the answers

What is the result of connecting a load to a circuit?

<p>The circuit becomes closed and current can flow (B)</p> Signup and view all the answers

What is the primary function of a switch in an electric circuit?

<p>To control the flow of current through the circuit (D)</p> Signup and view all the answers

What is the difference between a conductor and an insulator?

<p>A conductor allows the flow of electric current, while an insulator does not (D)</p> Signup and view all the answers

What is the purpose of a simple circuit diagram?

<p>To visualize the components and their connections in the circuit (D)</p> Signup and view all the answers

What is the result of combing your hair with a plastic comb?

<p>Your hair becomes positively charged (C)</p> Signup and view all the answers

What is the main function of rods in the human eye?

<p>To detect light and dark changes, shapes, and movement (C)</p> Signup and view all the answers

Which structure in the eye controls the amount of light that enters?

<p>Iris (A)</p> Signup and view all the answers

What is the process by which light bends as it passes from one medium to another?

<p>Refraction (B)</p> Signup and view all the answers

Why does light refract when it passes from one medium to another?

<p>Because of the change in speed (B)</p> Signup and view all the answers

What is the term for a measure of how much a medium can slow down light?

<p>Optical density (A)</p> Signup and view all the answers

What is the result of refraction in a prism?

<p>Dispersion of light (D)</p> Signup and view all the answers

What is the purpose of the optic nerve in the process of vision?

<p>To transmit electrical signals from the eye to the brain (D)</p> Signup and view all the answers

What is the function of cone cells in the retina?

<p>To detect different wavelengths of light (B)</p> Signup and view all the answers

What is the result of placing a straw in a glass of water?

<p>The straw appears bent (B)</p> Signup and view all the answers

What is the term for the process of interpreting electrical signals as visual images?

<p>Brain interpretation (A)</p> Signup and view all the answers

What is the process that splits white light into its component colors, creating a rainbow?

<p>Dispersion (C)</p> Signup and view all the answers

What type of lens is used to correct near-sightedness?

<p>Diverging lens (A)</p> Signup and view all the answers

What is the function of a converging lens?

<p>To focus light rays to a single point (B)</p> Signup and view all the answers

What is the purpose of corrective lenses in glasses?

<p>To correct vision (D)</p> Signup and view all the answers

What occurs when light enters a raindrop?

<p>It is refracted (A)</p> Signup and view all the answers

What is the term for the bending of light as it passes from one medium to another?

<p>Refraction (C)</p> Signup and view all the answers

What is the result of light being refracted through a triangular prism?

<p>The light is dispersed into its component colors (C)</p> Signup and view all the answers

What is the term for the separation of light into its component colors?

<p>Dispersion (B)</p> Signup and view all the answers

What is the purpose of a converging lens in a microscope?

<p>To focus light rays (C)</p> Signup and view all the answers

What is the result of light being reflected off the back of a raindrop?

<p>The light is transmitted back out of the raindrop (D)</p> Signup and view all the answers

What is the process responsible for creating a rainbow?

<p>Refraction (A), Dispersion (D)</p> Signup and view all the answers

What is the function of a converging lens?

<p>To bend light rays inward (A)</p> Signup and view all the answers

What type of lens is used to correct near-sightedness?

<p>Diverging lens (B)</p> Signup and view all the answers

What is the result of light refraction as it enters a raindrop?

<p>It is split into its component colors (C)</p> Signup and view all the answers

What is the purpose of lenses in optical devices?

<p>All of the above (D)</p> Signup and view all the answers

What happens to light as it exits a raindrop?

<p>It is refracted again (D)</p> Signup and view all the answers

What type of lens is used to correct far-sightedness?

<p>Converging lens (D)</p> Signup and view all the answers

What is the result of dispersion in a rainbow?

<p>Component colors are separated (D)</p> Signup and view all the answers

What is the purpose of a diverging lens?

<p>To spread light rays apart (D)</p> Signup and view all the answers

What is the application of lenses in microscopes?

<p>To magnify images (B)</p> Signup and view all the answers

What is the primary reason why rainbows appear in the sky?

<p>Light from the Sun refracts as it enters a raindrop and reflects off the back of the drop (D)</p> Signup and view all the answers

What is the main function of a converging lens?

<p>To bend light rays inward to a focal point (B)</p> Signup and view all the answers

What type of lens is used to correct near-sightedness?

<p>Diverging lens (biconcave) (C)</p> Signup and view all the answers

What is the process by which white light is split into its component colors?

<p>Dispersion (D)</p> Signup and view all the answers

What is the shape of the lenses used to correct far-sightedness?

<p>Biconvex (A)</p> Signup and view all the answers

What is the purpose of lenses in optical devices such as glasses and microscopes?

<p>To correct vision and magnify images (C)</p> Signup and view all the answers

What happens to light when it enters a raindrop?

<p>It refracts and changes direction (A)</p> Signup and view all the answers

What is the result of the process of refraction and dispersion in a rainbow?

<p>A range of colors is produced with different wavelengths (D)</p> Signup and view all the answers

What is the main difference between a converging lens and a diverging lens?

<p>The direction of bending of light rays (C)</p> Signup and view all the answers

What is the purpose of a diverging lens?

<p>To disperse light rays outward (B)</p> Signup and view all the answers

What is the main reason why rainbows display a band of colors?

<p>Light is refracted and dispersed as it passes through the raindrop (A)</p> Signup and view all the answers

What is the purpose of a converging lens?

<p>To bend light rays inward to a focal point (A)</p> Signup and view all the answers

What type of lens is used to correct near-sightedness?

<p>Diverging lens (A)</p> Signup and view all the answers

What is the result of light refracting through a prism?

<p>Light is split into its component colors (B)</p> Signup and view all the answers

What is the purpose of a diverging lens?

<p>To spread light rays apart (C)</p> Signup and view all the answers

What is the application of lenses in corrective eyewear?

<p>To correct vision (D)</p> Signup and view all the answers

What is the result of light reflecting off the back of a raindrop?

<p>Light is reflected back (D)</p> Signup and view all the answers

What is the term for the bending of light as it passes from one medium to another?

<p>Refraction (D)</p> Signup and view all the answers

What is the purpose of a lens in a microscope?

<p>To magnify objects (B)</p> Signup and view all the answers

What is the result of light passing through a converging lens?

<p>Light is focused to a point (C)</p> Signup and view all the answers

What is the primary mechanism responsible for the formation of a rainbow?

<p>Refraction and dispersion (B)</p> Signup and view all the answers

What is the function of a converging lens?

<p>To focus light rays to a point (D)</p> Signup and view all the answers

What type of lens is used to correct near-sightedness?

<p>Diverging lens (D)</p> Signup and view all the answers

What is the result of light passing through a triangular prism?

<p>It is refracted and dispersed (D)</p> Signup and view all the answers

What is the purpose of lenses in optical devices such as microscopes and telescopes?

<p>To focus and magnify images (D)</p> Signup and view all the answers

What is the term for the process of bending light rays?

<p>Refraction (B)</p> Signup and view all the answers

What is the result of light reflecting off the back of a raindrop?

<p>It is refracted again (B)</p> Signup and view all the answers

What type of lens is used to correct far-sightedness?

<p>Converging lens (A)</p> Signup and view all the answers

What is the purpose of glasses?

<p>To correct vision (A)</p> Signup and view all the answers

What is the result of light passing through a raindrop?

<p>It is refracted and dispersed (C)</p> Signup and view all the answers

What is responsible for creating a rainbow?

<p>All of the above (D)</p> Signup and view all the answers

What type of lens is used to correct near-sightedness?

<p>Diverging lens (biconcave) (C)</p> Signup and view all the answers

What is the primary function of lenses in optical devices?

<p>To focus or disperse light (D)</p> Signup and view all the answers

What happens to light as it enters a raindrop?

<p>It refracts and splits into its component colors (B)</p> Signup and view all the answers

What type of lens is used to correct far-sightedness?

<p>Converging lens (biconvex) (D)</p> Signup and view all the answers

What is the term for the process of separating a wave, such as light, into its constituent parts?

<p>Dispersion (D)</p> Signup and view all the answers

What is the purpose of converging lenses in optical devices?

<p>To focus light rays to a point (D)</p> Signup and view all the answers

What is the result of light refraction through a triangular prism?

<p>The light is separated into its component colors (A)</p> Signup and view all the answers

What is the application of lenses in devices such as microscopes and telescopes?

<p>To magnify images (B)</p> Signup and view all the answers

What is responsible for the separation of light into its component colors in a rainbow?

<p>All of the above (D)</p> Signup and view all the answers

What occurs when light from the Sun enters a raindrop?

<p>It is refracted and split into its component colors (A)</p> Signup and view all the answers

What is the purpose of a converging lens?

<p>To bend light rays inward, focusing them to a point (D)</p> Signup and view all the answers

Which type of lens is used to correct near-sightedness?

<p>Diverging lens (C)</p> Signup and view all the answers

What is the result of light refracting through a prism?

<p>The light is split into its component colors (A)</p> Signup and view all the answers

What is the primary function of lenses in optical devices?

<p>To correct vision and magnify images (D)</p> Signup and view all the answers

What is the term for the process of bending light around a corner or through a small opening?

<p>Diffraction (D)</p> Signup and view all the answers

What occurs when light hits the back of a raindrop?

<p>It is reflected back into the air (B)</p> Signup and view all the answers

Which type of lens is used to correct far-sightedness?

<p>Converging lens (B)</p> Signup and view all the answers

What is the result of light refracting through a converging lens?

<p>The light is focused to a point (C)</p> Signup and view all the answers

What is the purpose of a diverging lens?

<p>To bend light rays outward, making them spread apart (C)</p> Signup and view all the answers

What is the main reason for the formation of a rainbow?

<p>All of the above (D)</p> Signup and view all the answers

What is the purpose of a converging lens?

<p>To bend light rays inward to a focal point (B)</p> Signup and view all the answers

What is the correction for near-sightedness?

<p>Diverging lens (biconcave) (A)</p> Signup and view all the answers

What is the term for the process of light bending as it passes from one medium to another?

<p>Refraction (B)</p> Signup and view all the answers

What is the main application of lenses?

<p>To correct vision and magnify images (C)</p> Signup and view all the answers

What happens to light as it exits a raindrop?

<p>It is refracted again (D)</p> Signup and view all the answers

What is the main characteristic of a diverging lens?

<p>It bends light rays outward, making them spread apart (B)</p> Signup and view all the answers

What is the process of separating a wave, such as light, into its constituent parts?

<p>Dispersion (C)</p> Signup and view all the answers

What is the main difference between converging and diverging lenses?

<p>The direction of light bending (D)</p> Signup and view all the answers

What is the result of the refraction, reflection, and dispersion of light in a raindrop?

<p>A rainbow (C)</p> Signup and view all the answers

Flashcards are hidden until you start studying

More Like This

Static Electricity Concepts
17 questions

Static Electricity Concepts

ExceedingSalamander avatar
ExceedingSalamander
Gr 8 Natural Sciences Ch 3.1: Friction and static electricity
56 questions

Gr 8 Natural Sciences Ch 3.1: Friction and static electricity

GreatestTiger avatar
GreatestTiger
Physics Chapter on Static Electricity
10 questions

Physics Chapter on Static Electricity

FertileLove2329 avatar
FertileLove2329
Static Electricity Concepts
10 questions

Static Electricity Concepts

UltraCrispVibraphone895 avatar
UltraCrispVibraphone895
Use Quizgecko on...
Browser
Open
Browser
Browser