Topic 2 Lesson 2 Collisions

If you increase the weight of a moving object, the amount of energy it can transfer does what?

• stays the same

• decreases

• increases

• none of these

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When a hockey puck hits a plexiglass barrier some of the energy is converted into what?

• sound only

• sound and heat

• matter and heat

• sound and matter

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In a collision, some kinetic energy that is transferred is converted to _________ and ________ energy.

• light

• heat

• sound

• electric

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A car traveling at a slow speed runs into a stopped car. A car moving at a fast speed runs into a stopped car. Which one would cause the most damage?

• The damage would be the same

• The fast-moving car would cause more damage

• The slow moving car would cause more damage

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Which has more kinetic energy, a fast horse or a stopped horse?

• Neither has kinetic energy

• They have the same kinetic energy

• The fast horse

• The stopped horse

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If a 7 pound ball and a 1 pound ball are rolling along at the same speed, which ball has more kinetic energy?

• The 7 pound ball

• The 1 pound ball

• They have the same amount of kinetic energy

• There is not enough information to answer this question

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NGSS.MS-PS3-1

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Which of the following is an example of a collision that does not cause damage?

• A truck stopped in traffic

• A ball resting on the grass

• A pencil writing on a piece of paper

• None--all collisions cause damage

If you rub your hands together, why do they get warm?

• Some kinetic energy is converted to sound energy

• Some of the kinetic energy is converted to heat energy

• Some of the kinetic energy is converted to electrical energy

• Some of the kinetic energy is converted to light energy

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