Collisions Lesson

Which of the following would transfer more energy?

• Lowering ball 1 before release

• Raising ball 1 higher before release

• Gently putting ball 1 down next to ball 2

• Keeping ball 1 in the same place

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Which of the following is true about what happens to energy when two balls collide?

• The total amount of energy between the two balls becomes zero.

• The total amount of energy between the two balls stays the same.

• The total amount of energy between the two balls increases.

• The total amount of energy between the two balls decreases.

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What effects the amount of energy transferred in a collision?

• the speed

• the weight

• the speed AND weight

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While playing with toy cars, Kirsten and Luca each push a car toward the center of the room. What happens when the toy cars collide?

• Energy is transferred.

• Energy is unchanged.

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The picture shows what type of collision?

• Elastic, Inelastic and Perfectly Inelastic Collision

• Inelastic Collision

• Perfectly Inelastic Collision

• Elastic Collision

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What is kinetic energy?

• energy of work

• energy of motion

• energy of gravity

• energy of power

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During a collision, some energy can be transferred into ______ or sound.

• force

• heat

• electricity

• conservation

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Friction during a collision causes some kinetic energy to be changed into _________.

• chemical energy

• potential energy

• electricity

• heat

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What is the law of conservation of momentum in collisions?

• Momentum is always lost in a collision.

• Momentum is always gained in a collision.

• Total momentum before and after a collision is the same.

• Momentum is converted into energy.

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Which type of collision conserves both momentum and kinetic energy?

• Elastic collision

• Inelastic collision

• Perfectly inelastic collision

• Partial collision

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