Collisions in Two Dimensions

Collisions can be ____________or ___________.

• fast or slow

• far or near

• elastic or inelastic

• none of the above

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hen two or more objects hit each other with a force they experience a _____________.

• Collision

• Potential energy

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_________________________ is when some of the kinetic energy of the colliding object is transformed into other types of energy.

• Inelastic collision

• Energy transfer

What does Newton's Third Law State?

• Energy cannot be created or destroyed. Energy can be transformed.

• For every action, there is an equal and opposite reaction.

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When you're bowling, kinetic energy from the bowling ball is transferred to the _________________.

• your shoes

• your hand

• floor

• pins

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The ...................... an object the more damage it causes during crash.

• faster

• slower

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What is transferred at the instant the bat hits the ball?

• energy

• sound

• light

• matter

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To explain Newton's cradle we talked about

• velocity and distance

• mass and weight

• energy and momentum

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Which vehicle would cause more damage to a brick home: a 1,500 pound compact car traveling at 50 mph or a 15,000 pound dump-truck traveling at 10 mph?

• The compact car because it's traveling faster

• The dump-truck, because it has more mass than the car

• There isn't enough information provided to determine the answer

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In a two-dimensional collision, which of the following quantities is conserved?

• Momentum in the x-direction only

• Momentum in the y-direction only

• Momentum in both x and y directions

• Kinetic energy only

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