3rd Grade Force Motion and Energy Review

What form of energy is being used when a person hits a tennis ball with a tennis racket?

• thermal energy

• sound energy

• light energy

• mechanical energy

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What kind of energy is associated with vibrations?

• mechanical energy

• electrical energy

• light energy

• sound energy

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A campfire is an example of which two forms of energy?

• light and sound
• heat and light
• sound and motion
• motion and electricity

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What happens to particles as they cool down?

• They slow down
• Nothing
• They don't move
• They speed up

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What happens to particles as they heat up?

• They slow down
• Nothing
• They don't move
• They speed up

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On a cold day, Jayden rubs his hands together while waiting for the bus outside. Why does he do this?

• Jayden is causing the air around him to warm up.

• Jayden is keeping busy because he is bored.

• Jayden is causing friction, which creates heat.

• Jayden is causing radiation to warm his hands.

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Looking at the picture, what type of energy is being used?

• light
• thermal
• mechanical
• sound

What force is used in a compass?

• gravitational
• magnetic
• a pull
  
• electric

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What is the reason the car travels down the ramp?

• the ramp is magnetic
  
• the car has wheels
• the force of gravity pulls the car
• the car is a very weak magnet

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A push or pull that causes an object to move, stop, or change direction.

• force

• friction

• gravity

• weight

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