Energy, Waves, & Human Body Summative Assessment

1. Name

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4.7

When an object is held in the air, it has stored energy. When the object is released and begins falling, it experiences ________________________.

• electrical energy
• transferred energy
• motion energy
• collision energy

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4.1

Which appliance transforms electrical energy into sound and light?

• oven
• TV
• blender

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4.2

4.2.a

4.2.b

4.2.c

Which energy transformation happens when you pluck a guitar string to make it vibrate?

• solar -> light
• mechanical -> chemical
• mechanical -> sound

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4.2

4.2.a

4.2.b

4.2.c

Imagine a truck collides with a stationary car at the bottom of the hill. Which of the following is likely to happen?

• When the truck and car collide, the car will not move and the truck will stop.
• When the truck and car collide, the car is pushed and begins moving. The truck slowly comes to a stop.

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4.1

4.3

Based on the outcome of the collision in Question 5, which description of energy transfer is correct?

• chemical -> chemical
• mechanical -> mechanical

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4.1

4.3

Sound moves in waves. If a sound is played on repeat, which is true?

• The sound waves will lose energy over time.
• The sound waves will follow the same pattern over time.
• The sound waves will be heavier over time.

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4.2

4.2.a

4.2.b

4.2.c

4.7

An engineer is trying to build a car that does not use fossil fuels or chemical energy to move. Which might be the best option?

• Solar panels
• Gasoline
• Batteries

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4.5

How are tumbling dominoes an example of both energy transfer and energy transformation?

• Dominoes are not an example of energy transfer.

• The motion energy transfers from domino to domino causing each to fall. Energy transforms when sound is emitted as the dominoes collide.

• Dominoes are not an example of energy transformation.

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4.1

4.3

You are racing a toy boat across a pond. Which type of wave would cause the boat to move the fastest?

• Waves with a small amplitude
• Waves with a high frequency

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4.6

4.7