Chapter 7 Heat and Energy

1. The energy of motion is called

• Potential Energy
• Chemical Energy
• Kinetic Energy
• Thermal Energy

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2. If you are sitting at the top of a slide (waiting to go down it), what kind of energy do you have?

• Electrical Energy
• Potential Energy
• Kinetic Energy
• Sound Energy

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3. What type of energy does a toaster create? (Think about what it does to the bread.)

• Sound Energy
• Chemical Energy
• Thermal Energy

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4. When you plug in a speaker to play music, what kind of energy transfer is taking place?

• Kinetic to sound
• Electrical to potential
• Chemical to thermal
• Electrical to sound

5. A man and his dog are walking down the street at the same speed. Which has more kinetic energy?

• The dog because he is a lot more energetic and hyper than the man.
• The man because he has more mass than the dog.
• The dog because he can run faster than the man.
• The man because he eats more food than the dog so he has more stored energy.

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6. When does a kid who is sledding have the most potential energy?

• At the top of the hill
• As they're going down the hill
• At the bottom of the hill
• As they're walking back up the hill

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7. Kennedy put a battery into her flashlight, then turned the flashlight on. What type of energy transfer is taking place?

• Electrical to mechanical
• Potential to sound
• Chemical to light
• Thermal to kinetic

8. As molecules move faster, the matter gets warmer. This type of energy is called...

• Potential energy
• Thermal energy
• Sound energy
• Chemical energy

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9. Heat keeps moving until...

• The temperature of 1 object reaches the freezing point.
• The temperature of both objects are equal.
• The temperature of 1 object reaches the boiling point.

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10. Materials that allow energy to travel easily are conductors. Which is an example of a conductor?

• Plastic
• Metal
• Pot Holders
• Styrofoam

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