Elastic and Inelastic Collisions

The picture shows what type of collision?

• Elastic, Inelastic and Perfectly Inelastic Collision

• Inelastic Collision

• Perfectly Inelastic Collision

• Elastic Collision

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The Law of Conservation of Momentum states that the amount of momentum in a system is ___________________ before and after a collision.

• greater

• decreased

• the same

• unknown

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This picture is an example of ____________

• Elastic Collision

• Inelastic collision

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As you are walking along the sidewalk you step on a piece of gum that sticks to your shoe.  This is an example of an _____ collision.

• Elastic

• Inelastic

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Due to friction, a purely _____ collision is impossible outside of a laboratory setting.

• Elastic

• Inelastic

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The total momentum before a collision is _________ the total momentum after a collision.

• equal to 

• less than 

• more than

• It depends on the type of collision

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In any collision (crash) the ______ is ALWAYS constant

• total momentum

• total speed

• total Velocity

• Energy

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Which of the following is true for an elastic collision?

• Total kinetic energy is conserved

• Total momentum is not conserved

• Objects stick together

• Energy is lost as heat

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In an inelastic collision, what happens to the kinetic energy?

• It is completely conserved

• It is partially lost

• It is completely lost

• It is doubled

Two cars collide and stick together after the collision. What type of collision is this?

• Elastic

• Inelastic

• Perfectly elastic

• Superelastic

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