Podcast
Questions and Answers
Atomic size is also referred to as what?
Atomic size is also referred to as what?
- Abiogenetic relationship
- Symbiotic relationship
- Universal relationship (correct)
- Spontaneous relationship
Under which condition is a molecule considered polar or a dipole?
Under which condition is a molecule considered polar or a dipole?
- Its positive and negative charges are at different places (correct)
- Its polar bonds have symmetrical charge distribution
- Such a charge separation exists in a whole molecule
- There is no charge separation
Which statement is correct regarding the relationship between molecular weight and boiling/melting points?
Which statement is correct regarding the relationship between molecular weight and boiling/melting points?
- Boiling and melting point tend to increase with molecular weight (correct)
- Boiling point increases while melting point decreases with molecular weight
- Boiling and melting point tend to decrease with molecular weight
- Molecular weight does not influence boiling and melting point of a substance
Which of the following planets exerts the greatest gravitational pull?
Which of the following planets exerts the greatest gravitational pull?
Which of the following options is NOT typically considered a primary source of energy?
Which of the following options is NOT typically considered a primary source of energy?
Which instrument is used to convert mechanical energy into electrical energy?
Which instrument is used to convert mechanical energy into electrical energy?
What process is used for removing excess odor in water?
What process is used for removing excess odor in water?
Why does the sun appear to rise in the east and set in the west?
Why does the sun appear to rise in the east and set in the west?
In which states of matter can polarization occur?
In which states of matter can polarization occur?
A person standing waist deep in a swimming pool appears to have short legs due to which phenomenon?
A person standing waist deep in a swimming pool appears to have short legs due to which phenomenon?
Which principle states that light takes the path requiring the least time to travel between two points?
Which principle states that light takes the path requiring the least time to travel between two points?
An echo is primarily a result of which wave phenomenon?
An echo is primarily a result of which wave phenomenon?
If a light wave moves from a medium with a refractive index of 1.5 to one with an index of 1.2, what happens to its frequency and wavelength?
If a light wave moves from a medium with a refractive index of 1.5 to one with an index of 1.2, what happens to its frequency and wavelength?
In ecosystems, what unit of measurement is typically used to quantify energy?
In ecosystems, what unit of measurement is typically used to quantify energy?
Which term best describes a group of interacting plants, animals, and humans in a specific area?
Which term best describes a group of interacting plants, animals, and humans in a specific area?
What environmental phenomenon is characterized by excessive carbon dioxide in the atmosphere trapping heat and raising the Earth's temperature?
What environmental phenomenon is characterized by excessive carbon dioxide in the atmosphere trapping heat and raising the Earth's temperature?
Which layer of the Earth serves as a protective barrier against the sun's harmful radiation?
Which layer of the Earth serves as a protective barrier against the sun's harmful radiation?
The use of products containing which substance is discouraged due to its contribution to ozone layer depletion?
The use of products containing which substance is discouraged due to its contribution to ozone layer depletion?
The growth of roots towards water is an example of what?
The growth of roots towards water is an example of what?
What does the acronym DNA stand for?
What does the acronym DNA stand for?
What numerical value represents a mole, the amount of substance containing the same number of particles as there are atoms in 12 grams of carbon-12?
What numerical value represents a mole, the amount of substance containing the same number of particles as there are atoms in 12 grams of carbon-12?
Which phenomenon involves the emission of light from a substance after it has absorbed energy, with a prolonged delay compared to fluorescence?
Which phenomenon involves the emission of light from a substance after it has absorbed energy, with a prolonged delay compared to fluorescence?
What is the approximate time it takes for the Earth to complete one full rotation on its axis?
What is the approximate time it takes for the Earth to complete one full rotation on its axis?
The movement of water molecules through a selectively permeable membrane from an area of higher water concentration to lower concentration is best described as:
The movement of water molecules through a selectively permeable membrane from an area of higher water concentration to lower concentration is best described as:
A food web is best described as which of the following?
A food web is best described as which of the following?
Which of the following processes occurs in respiration but NOT in fermentation?
Which of the following processes occurs in respiration but NOT in fermentation?
Which of the following best illustrates the concept of energy removal from a substance?
Which of the following best illustrates the concept of energy removal from a substance?
What is the term that defines a group of similar cells performing a specific function?
What is the term that defines a group of similar cells performing a specific function?
The force of gravity acting upon an object is best described by which of the following terms?
The force of gravity acting upon an object is best described by which of the following terms?
What is the primary process by which the Sun generates its energy?
What is the primary process by which the Sun generates its energy?
In physics, what term best describes the application of energy to move an object or system?
In physics, what term best describes the application of energy to move an object or system?
What general term encompasses all forms of water falling from the atmosphere to the Earth's surface?
What general term encompasses all forms of water falling from the atmosphere to the Earth's surface?
Which layer of the Earth's atmosphere is most responsible for filtering out harmful ultraviolet rays from the sun?
Which layer of the Earth's atmosphere is most responsible for filtering out harmful ultraviolet rays from the sun?
What term describes the point in Earth's orbit when it is closest to the Sun?
What term describes the point in Earth's orbit when it is closest to the Sun?
Which term describes the property of certain minerals that emit light when exposed to ultraviolet radiation?
Which term describes the property of certain minerals that emit light when exposed to ultraviolet radiation?
Which of the following options correctly identifies the male and female reproductive parts of a flowering plant?
Which of the following options correctly identifies the male and female reproductive parts of a flowering plant?
What best describes the function of enzymes within the human body?
What best describes the function of enzymes within the human body?
What does LASER stand for?
What does LASER stand for?
What determines the color of a transparent substance?
What determines the color of a transparent substance?
What is a rotating electromagnetic device called?
What is a rotating electromagnetic device called?
What is an electrochemical cell in which the reacting materials can be renewed by using a reverse current?
What is an electrochemical cell in which the reacting materials can be renewed by using a reverse current?
What does temperature measure?
What does temperature measure?
In thermodynamics, what does the zeroth law state regarding thermal equilibrium?
In thermodynamics, what does the zeroth law state regarding thermal equilibrium?
Two identical pots filled with boiling water are compared. One pot is white, and the other is black. Which pot cools faster?
Two identical pots filled with boiling water are compared. One pot is white, and the other is black. Which pot cools faster?
If a material becomes positively charged after being rubbed, what does this indicate?
If a material becomes positively charged after being rubbed, what does this indicate?
Flashcards
Calorie
Calorie
A measure of energy in food.
Ecological community
Ecological community
A community of interacting organisms (plants, animals, humans) in a specific area.
Greenhouse Effect
Greenhouse Effect
The trapping of heat by excessive carbon dioxide, causing a rise in Earth's temperature.
Ozone layer
Ozone layer
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Chlorofluorocarbons (CFCs)
Chlorofluorocarbons (CFCs)
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Hydrotropism
Hydrotropism
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DNA
DNA
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Parthenogenesis
Parthenogenesis
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Polar Molecule
Polar Molecule
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Molecular Weight vs. Boiling/Melting Point
Molecular Weight vs. Boiling/Melting Point
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Jupiter
Jupiter
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Energy
Energy
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Generator
Generator
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Aeration
Aeration
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Earth's Rotation
Earth's Rotation
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Gravity's Role in the Universe
Gravity's Role in the Universe
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Polarization
Polarization
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Refraction
Refraction
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Fermat's Principle
Fermat's Principle
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Reflection
Reflection
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Convex Mirror
Convex Mirror
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Phenotype
Phenotype
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Osmosis
Osmosis
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Food Web
Food Web
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Boiling Point
Boiling Point
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Weight
Weight
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Gas Compression
Gas Compression
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Sun's Energy Source
Sun's Energy Source
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Work (Energy)
Work (Energy)
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Precipitation
Precipitation
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Perihelion
Perihelion
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Luminescence
Luminescence
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Partial Eclipse
Partial Eclipse
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Stamen and Pistil
Stamen and Pistil
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LASER
LASER
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Color of Transparent Substance
Color of Transparent Substance
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Motor
Motor
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Storage Cell
Storage Cell
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Temperature
Temperature
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Zeroth Law of Thermodynamics
Zeroth Law of Thermodynamics
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Pot Cooling Rate (Black vs. White)
Pot Cooling Rate (Black vs. White)
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Positive Charge (Rubbing)
Positive Charge (Rubbing)
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Study Notes
- Autotrophs use sunlight, chlorophyll, water, and carbon dioxide to produce food.
- The circulatory system is described as the lifeline of the body, acting as its "pickup" and delivery system.
- Neurons, or nerve cells, transmit messages between different parts of the body and the brain and vice versa.
- The brainstem controls breathing, blood pressure, heart rate, and alertness.
- A food chain refers to a sequence of organisms in a community that constitutes a feeding chain.
- An ecological community is a group of interacting plants, animals, and humans in a particular area.
- Excessive carbon dioxide in the air traps heat near the Earth's surface, causing a rise in temperature, known as the Greenhouse Effect.
- The ozone layer shields the Earth from the sun's harmful radiation.
- The use of products containing chlorofluorocarbons is discouraged because they contribute to the depletion of the ozone layer.
- High and low tides are caused by the moon's gravitational pull.
- An occlusion forms when a cold front pushes warm air up off the ground.
- A heat haze results from a distorted image due to the bending of the sun's light rays by changes in air temperature.
- Hormones work by controlling cell chemistry.
- Testosterone is the male sex hormone.
- Calorie amount is the unit of measurement of energy in a given amount of food.
- The growth of roots towards water is an example of hydrotropism.
- DNA stands for deoxyribonucleic acid.
- The three products of oxygen when it has been burned include energy, water, and carbon dioxide.
- In flowering plants, fertilization happens in the ovules.
- Parthenogenesis refers to the development of an egg without fertilization.
- Light is a source of energy needed for photosynthesis.
- Chemistry is primarily concerned with the composition and changes of matter.
- A scientific theory is an explanation that can be repeatedly tested and corroborated.
- Magnesium is not a compound.
- Electronegativity is a measure of how strongly an atom attracts another electron.
- Electron affinity measures the willingness of an atom to receive an electron.
- A molecule is said to be polar or a dipole if such a charge separation exists in the whole molecule.
- Boiling and melting points tend to increase with molecular weight.
- A mole is the amount of substance or a mass of a substance that contains 6.02 x 1023 particles.
- Mass measures the amount of matter in an object.
- The Law of Conservation of Energy states that energy cannot be created nor destroyed but only changes from one form to another.
- The Kinetic Theory states that matter is made up of a large number of molecules in continuous motion.
- Absolute Zero is the lowest possible temperature that a substance can reach.
- Specific heat capacity is the amount of heat required to raise the temperature of 1 kg of a substance by one degree Celsius.
- The symbiotic relationship of give-and-take of living organisms in the biosphere is a balance of nature.
- Aeration is the process of removing excess odor in water.
- The earth rotates on its axis from west to east, causing the sun to rise in the east and set in the west.
- Jupiter has the greatest gravitational pull among the listed planets.
- Inertia at rest is not a source of energy.
- A generator converts mechanical energy to electrical energy.
- The sun's energy is generated by a nuclear fusion reaction.
- Application of energy is called work.
- Precipitation is the falling of any form of water from the air to the Earth's surface.
- The ozone layer is the part of the atmosphere that filters the ultraviolet rays of the sun.
- Perihelion is the point in the Earth's orbit nearest to the sun.
- Luminescence is observed when an mineral gives off rays of light when exposed to ultraviolet light.
- The Earth completes one rotation in 24 hours.
- The principal job of gravity in the universe keeps the stars and other heavenly bodies in orbit.
- The word "monsoon" means wet weather.
- A lunar eclipse occurs when the Earth is between the sun and the moon, with the Earth's shadow cast over the moon.
- The stamen and pistil are the male and female reproductive parts of a flower.
- In the human body, the white blood cell most nearly resembles a one-celled animal.
- Glucose are the main energy source for a plant-eating animal.
- Enzymes are cellular secretions which help regulate the breakdown and build-up of various substances in the body.
- Adenosine Triphosphate is the energy source of the cell which it uses for growing, reproducing, and other activities.
- A gene is a segment of a DNA molecule which controls the appearance of a given trait.
- Tissue is a grouping of similar cells performing similar functions together.
- Osmosis is the diffusion of water through a semi-permeable membrane.
- A food web shows the complex food relationship of organisms in a given area and the cyclic flow of food through organisms.
- Alcohol not formed occurs in both respiration and fermentation.
- Changing water to ice best illustrates energy removal.
- Solubility refers to the maximum amount of solute expressed that can be dissolved in 100 grams of water at a specific temperature.
- Isomers are compounds with the same molecular formula but with different structural formulas.
- Gamma particle is the most penetrating type of radiation given off by radioactive elements.
- Atomic mass unit measures the masses of individual atoms.
- A catalyst a substance that speeds up a chemical reaction.
- Boiling Point is the temperature at which the vapor pressure of the liquid is equal to the pressure of the surrounding atmosphere.
- Greenhouse effect is the warming of the Earth's surface due to an increase in atmospheric carbon dioxide.
- Weight describes the force of gravity on an object.
- When gaseous molecules are compressed, they tend to decrease in volume and liquefy.
- Nuclear Fusion occurs when two light nuclei unite to form a heavier nucleus, resulting in a mass defect and release of energy.
- Electronic spectrums follow the laws of refraction and reflection.
- The term "RADAR" is derived from the phrase "Radiation Detection and Ranging".
- Semi-conductors are materials whose ability to conduct electricity lies between those of conductors and insulators.
- "LASER" is derived from the phrase "Light Amplification by Stimulated Emission of Radiation".
- The color of a transparent substance is based on the color of light it transmits.
- A motor a rotating electromagnetic is called?
- A storage cell is an electrochemical cell in which the reacting materials can be renewed by the use of reverse current. Temperature is a measure of the average molecular kinetic energy in a substance.
- Zeroth law states that two systems in thermal equilibrium with a third system are in thermal equilibrium with each other.
- The second law of thermodynamics says the natural direction of heat flow is from a high-temperature reservoir to a low-temperature reservoir.
- The warmth felt when placing a finger near a burning candle is primarily caused by the radiation of heat.
- When heat is added to boiling water, its temperature remains the same.
- An adiabatic process in a system means is no heat enters or leaves the system.
- Heat transfer by convection occurs only in gases and liquids.
- The black pot cools faster among two pots, same size filled with boiling water, but one is white and pots black.
- Electrons is lost if a material becomes positively charged after being rubbed.
- A diode conducts electricity in only one direction.
- Coulomb's Law states that the force of electrostatic interaction between two point charges is directly proportional to the product of their charges and inversely proportional to the square of their separation distance.
- The electron volt is a unit of energy.
- Overall current in the circuits increases as more lamps are put into a parallel circuit.
- Electric power is defined as current times voltage.
- Lenz's law is a consequence of the law of conservation of energy.
- Interference is the property of light that produces bright and dark bands on a screen after light passes through two very narrow slits that are near each other.
- Refaction causes a person standing waist deep in a swimming pool appears to have short legs.
- Fermat's principle states that light always takes a path that requires the least time.
- An echo is produced by the reflection of sound.
- Greater amplitude relates to why some sound is louder than others by?
- A convex mirror is used in automobiles and trucks to give the driver a wider area and smaller image of the traffic behind him.
- Wavelength increases occurs as light wave passes from a medium whose index of refraction is 1.5 into a medium whose index of refraction is 1.2.
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