Podcast
Questions and Answers
Which type of electromagnetic radiation is used in microwave ovens?
Which type of electromagnetic radiation is used in microwave ovens?
- Visible Light
- Infrared Light
- Microwaves (correct)
- Radio waves
Ultraviolet light has a longer wavelength than visible light.
Ultraviolet light has a longer wavelength than visible light.
False (B)
What are the two types of light sources based on their ability to produce light?
What are the two types of light sources based on their ability to produce light?
Luminous and non-luminous
The emission of light after exposure to radiation is called ______.
The emission of light after exposure to radiation is called ______.
Match the type of light production with its corresponding example:
Match the type of light production with its corresponding example:
Which of the following is NOT a use of radio waves?
Which of the following is NOT a use of radio waves?
Gamma rays are a type of electromagnetic radiation that has the longest wavelength.
Gamma rays are a type of electromagnetic radiation that has the longest wavelength.
What is the phenomenon that causes a material to emit light during exposure to radiation?
What is the phenomenon that causes a material to emit light during exposure to radiation?
What is the primary function of the nucleus in a cell?
What is the primary function of the nucleus in a cell?
The nuclear membrane has pores that allow material exchange.
The nuclear membrane has pores that allow material exchange.
What fluid-filled structures in cells are mainly responsible for storing food and water?
What fluid-filled structures in cells are mainly responsible for storing food and water?
The _____ is the watery substance that fills the empty space in the cell.
The _____ is the watery substance that fills the empty space in the cell.
Match the following cell structures with their primary functions:
Match the following cell structures with their primary functions:
What is the primary function of the Excretory System?
What is the primary function of the Excretory System?
What is the primary function of mitochondria in the cell?
What is the primary function of mitochondria in the cell?
The skeletal system only provides support to the body without any other functions.
The skeletal system only provides support to the body without any other functions.
Lysosomes are responsible for packaging materials to be transported in the cell.
Lysosomes are responsible for packaging materials to be transported in the cell.
What are vesicles used for in animal and plant cells?
What are vesicles used for in animal and plant cells?
What does the Lymphatic System primarily do?
What does the Lymphatic System primarily do?
The _______ System is responsible for bringing in oxygen and removing carbon dioxide.
The _______ System is responsible for bringing in oxygen and removing carbon dioxide.
Animal cells have _____ vacuoles compared to plant cells because they consume food and fluids instead of performing photosynthesis.
Animal cells have _____ vacuoles compared to plant cells because they consume food and fluids instead of performing photosynthesis.
Match the following systems with their main functions:
Match the following systems with their main functions:
Match the following organelles with their functions:
Match the following organelles with their functions:
What is a characteristic that can be observed without changing the substance?
What is a characteristic that can be observed without changing the substance?
A chemical change is easy to reverse.
A chemical change is easy to reverse.
What kind of bond is formed when two nonmetals share electrons?
What kind of bond is formed when two nonmetals share electrons?
The law of conservation of mass states that matter cannot be created or ______ in a chemical reaction.
The law of conservation of mass states that matter cannot be created or ______ in a chemical reaction.
Match the following groups of elements with their characteristics:
Match the following groups of elements with their characteristics:
Which reaction occurs when one compound splits into two or more products?
Which reaction occurs when one compound splits into two or more products?
Ionic bonds are formed when two nonmetals share electrons.
Ionic bonds are formed when two nonmetals share electrons.
What type of chemical reaction results in the formation of a compound from two or more reactants?
What type of chemical reaction results in the formation of a compound from two or more reactants?
Which products are formed during complete combustion of a hydrocarbon?
Which products are formed during complete combustion of a hydrocarbon?
A solution with a pH of 6 is considered basic.
A solution with a pH of 6 is considered basic.
What is the ideal pH range for a swimming pool?
What is the ideal pH range for a swimming pool?
Acids are located on the ______ end of the pH scale.
Acids are located on the ______ end of the pH scale.
Match the following properties with acids and bases:
Match the following properties with acids and bases:
What is a characteristic of an oxyacid?
What is a characteristic of an oxyacid?
When an acid and a base neutralize, they form water and a salt.
When an acid and a base neutralize, they form water and a salt.
What method does light use to transfer energy?
What method does light use to transfer energy?
Flashcards
Cell Membrane
Cell Membrane
A double layer of fats with embedded proteins. Controls what enters and leaves the cell, holding it together.
Cytoplasm
Cytoplasm
The watery substance filling the space in a cell. Nutrients dissolve in this fluid and are transported throughout the cell.
Nucleus
Nucleus
The cell's control center, containing DNA. It directs the cell's activities.
Nuclear Membrane
Nuclear Membrane
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Nucleolus
Nucleolus
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What is the respiratory system's main job?
What is the respiratory system's main job?
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What is the nervous system's structure and role?
What is the nervous system's structure and role?
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What is the excretory system's function and what does it look like?
What is the excretory system's function and what does it look like?
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What is the muscular system's main job and appearance?
What is the muscular system's main job and appearance?
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What is the endocrine system and what does it look like?
What is the endocrine system and what does it look like?
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Chemical Property
Chemical Property
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Physical Change
Physical Change
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Chemical Change
Chemical Change
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Physical Property
Physical Property
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Law of Conservation of Mass
Law of Conservation of Mass
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Synthesis Reaction
Synthesis Reaction
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Single Displacement Reaction
Single Displacement Reaction
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Double Displacement Reaction
Double Displacement Reaction
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Vacuole
Vacuole
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Vesicles
Vesicles
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Mitochondria
Mitochondria
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Lysosome
Lysosome
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Electromagnetic Spectrum
Electromagnetic Spectrum
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Radio Waves
Radio Waves
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Microwaves
Microwaves
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Infrared Light
Infrared Light
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Visible Light
Visible Light
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Ultraviolet Light
Ultraviolet Light
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X-Rays
X-Rays
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Gamma Rays
Gamma Rays
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What is the pH scale?
What is the pH scale?
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pH scale
pH scale
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Acid
Acid
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Base
Base
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Neutralization
Neutralization
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What is light?
What is light?
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Radiation
Radiation
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Oxyacid
Oxyacid
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Study Notes
Chapter 5: Memorization and Background Info
- Physical Property: A characteristic observed or measured without changing the substance (e.g., color, shape, texture, density)
- Chemical Property: Describes how a substance changes into a different substance, showing how it reacts with other substances (e.g., combustibility, reactivity)
- Physical Change: A substance remains the same, even if its state or form changes, easily reversible (e.g., melting, boiling, freezing, condensation, sublimation)
- Chemical Change: The original substance transforms into one or more different substances with different properties, difficult or impossible to reverse (e.g., burning, cooking, rusting)
- Bohr-Rutherford diagrams: Visual representations of the first 20 elements, showing protons and neutrons in the nucleus and electrons orbiting around the nucleus
- Group 1: Alkali Metals (soft, highly reactive metals)
- Group 2: Alkaline Earth Metals (light, reactive metals)
- Group 17/7: Halogens (one of the most reactive groups)
- Group 18/8: Noble Gases (stable, rarely react with other substances)
- Polyatomic Ions: Groups of two or more atoms held together by ionic or covalent bonds, electrons can be shared or transferred
- Ionic: Forms when a metal and a nonmetal come together
- Covalent: Forms when two nonmetals share electrons to fill their outer shells (e.g., H2O)
Chapter 6: Law of Conservation of Mass
- Law of Conservation of Mass: Matter cannot be created or destroyed in a chemical reaction; the total mass stays the same. Starting materials equal ending materials.
- Synthesis: Two or more reactants combine to form a single compound product (Element + Element → Compound)
Chapter 7: Acids and Bases
- pH Scale: Measures acidity or basicity of a solution, ranging from 0 to 14
- Lower values (0-6) are more acidic; higher values (8-14) are more basic
- A value of 7 is neutral (e.g., pure water)
- Neutralization: Mixing acids and bases to cancel out their properties, forming water and salt as products (Acid + Base → Water + Salt)
- Oxyacid: Acid containing hydrogen, oxygen, and another element, releasing H+ ions when dissolved in water. (e.g., sulfuric acid H2SO4)
Chapter 11: Light
- Light: A form of energy transferred through radiation, traveling in straight lines at high speed
- Radiation: A method of energy transfer that does not require a medium.
- Luminous: Produces its own light.
- Non-luminous: Does not produce its own light. Types of light production include incandescent, electrical discharge, phosphorescence, fluorescence, and chemiluminescence
Chapter 12: Refraction
- Refraction: The bending of light when it passes from one medium to another.
- The speed of light changes, and the angle changes when passing through a different medium.
- Dispersion: The separation of colours (e.g., a rainbow) of light through refraction, caused by differing speeds and bending angles of different wavelengths.
Other Topics
- Index of Refraction: Ratio of the speed of light in a vacuum to the speed of light in a given medium. (n = c/v)
- Biology: Detailed study of living things
- Cell Theory: All living things are made of cells; all cells come from existing cells; cells are the basic unit of life.
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