4.4 Mastery Check

What is electricity?

• A) The movement of water
• B) The flow of charged particles
• C) The energy from the sun
• D) The movement of air

2. How does heat help create electricity?

• A) It melts metal to make wires
• B) It turns water into ice
• C) It helps turbines and generators convert energy
• D) It makes the sun shine

3. What does a turbine do?

• A) Stores electricity
• B) Converts moving fluid into mechanical energy
• C) Creates heat from the sun
• D) Cools down hot air

4. What does a generator do?

• A) Converts mechanical energy into electrical energy
• C) Heats up water
• D) Moves air through buildings

5. What is an insulator?

• A) A material that allows electricity to flow easily
• B) A material that blocks the flow of electricity
• C) A type of fossil fuel
• D) A kind of generator

6. What is a conductor?

• A) A material that allows electricity to flow
• B) A device that stops electricity
• C) A type of generator
• D) A type of fuel

7. Where do we get heat from to power generators?

• A) The ocean
• B) Burning fossil fuels
• C) The wind
• D) The trees

8. Which of these is an example of a fossil fuel?

• A) Wind
• B) Water
• C) Coal
• D) Sunlight

9. Which of these is a renewable resource?

• A) Oil
• B) Coal
• C) Natural gas
• D) Sunlight

10. What is a nonrenewable resource?

• A) A resource that can be replaced quickly
• B) A resource that will eventually run out
• C) A resource that comes from trees
• D) A resource made from water