Quiz - Chapter 8: Momentum and Impulse (2/1)

A 0.250 kg cart moving at 0.400 m/s has how much momentum?

• 0.1 kg-m/s
• 1 kg-m/s
• 10 kg-m/s
• 100 kg-m/s

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NGSS.HS-PS2-2

A biker with a mass of 75 kg moves along the path with a constant velocity of 5 m/s. What is the biker's momentum?

p = mv

• 25 m/s

• 375 m/s

• 25 kg*m/s

• 375 kg*m/s

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NGSS.HS-PS2-2

The difference between a car hitting a wall vs. a car hitting a hay stack is:

• the Impulse on the car hitting the wall is greater.

• the change in momentum of the car hitting the wall is greater.

• the force on the car hitting the hay stack is greater.

• the collision time of the car hitting the hay stack is greater.

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NGSS.HS-PS2-1

NGSS.HS-PS2-2

Softer landings tend to:

• increase impact force.

• increase force.

• increase collision time.

• increase change in momentum.

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NGSS.HS-PS2-3

A 5 N force is applied to a 3 kg ball to change its velocity from +9 m/s to +3 m/s. The impulse on the ball is ______ N*s.

Ft = mv

• -2.5

• -10

• -18

• -45

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NGSS.HS-PS2-1

A 5 N force is applied to a 3 kg ball to change its velocity from +9 m/s to +3 m/s. The time for the collision is _____ seconds.

Ft = mv

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NGSS.HS-PS2-1

Which ONE of the following units represents the standard metric units of momentum?

• Newtons * meter / second

• Kilograms * meter / second²

• meter / second

• Kilograms * meter / second

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NGSS.HS-PS2-2

Which one of these objects has the greater amount of momentum?

• A turtle that slowly crosses a road

• A parked car

• A stop sign

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NGSS.HS-PS2-2

During a collision. an object experiences an impulse. How can this impulse be calculated?

• Multiplying force by time

• Multiplying mass by velocity

• Dividing velocity by time

• Multiplying mass by acceleration

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NGSS.HS-PS2-1

During a collision. an object experiences an impulse. The impulse causes and is equal to the _____ of the object?

• momentum change

• kinetic energy change

• force

• time

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NGSS.HS-PS2-2