AP Physics Collisions

Objects with more mass have more energy than objects with less mass. Therefore, If a heavy object is sitting still,

• It will be easier to move becuase it takes less energy to move

• It will be harder to move because it takes more energy to make it move.

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NGSS.HS-PS2-1

NGSS.HS-PS3-1

A boy threw a water balloon through the air at his brother. What best describes the moving water balloon?

• A. The moving water balloon is transferring sound energy to the air.

• B. The moving water balloon has energy of motion.

• C. The moving water balloon is transferring light energy to the air.

• D. The moving water balloon has light energy.

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

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

• matter

• energy

• sound

• light

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NGSS.MS-PS2-1

NGSS.MS-PS3-5

In science, when one object runs into another we call it a _____________.

• crash

• hit

• strike

• collision

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NGSS.HS-PS2-1

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

• increases

• decreases

• stays the same

• none of these

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NGSS.HS-PS2-1

What do we call the section of a car that absorbs energy in a collision?

• windshield

• bumper

• hood

• crumple zone

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NGSS.HS-PS2-3

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

• sound and heat

• sound and matter

• matter and heat

• sound only

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

In a perfectly inelastic collision, two objects collide and stick together. Which of the following is conserved in this type of collision?

• A) Kinetic energy

• B) Momentum

• C) Both kinetic energy and momentum

• D) Neither kinetic energy nor momentum

Tags

NGSS.HS-PS2-2

Two ice skaters, initially at rest, push off from each other. If Skater A has a mass of 50 kg and Skater B has a mass of 70 kg, what is the ratio of their velocities after the push?

• A) 1:1

• B) 7:5

• C) 5:7

• D) 1:2

Tags

NGSS.HS-PS2-2

A car of mass 1000 kg moving at 20 m/s collides with a stationary truck of mass 3000 kg. If they stick together after the collision, what is their common velocity?

• A) 5 m/s

• B) 10 m/s

• C) 15 m/s

• D) 20 m/s

Tags

NGSS.HS-PS2-2