Unit 3: Momentum and Impulse Review

If you double your velocity, your momentum

• doubles

• triples

• stays the same

• decreases.

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NGSS.HS-PS2-2

Velocity is a vector with both magnitude and direction. If momentum = mass x velocity, momentum must be a

• scalar

• vector

• neither

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NGSS.HS-PS2-2

In a closed system, a particle going 300 m/s collides with a second particle of equal mass at rest. The particles do not stick. The velocity of the second particle after the collision will be

• 0 m/s

• 150 m/s

• 300 m/s

• 600 m/s

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NGSS.HS-PS2-2

The momentum of an object at rest is

• 0 m/s

• 0 kg

• 0 kg x m/s

• equal to the potential energy

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NGSS.HS-PS2-2

Calculate the momentum of a 2 kg book sliding on a frictionless surface at 2 m/s.

• 2 kg x m/s

• 4 kg x m/s

• 0 kg x m/s

• 1 kg x m/s

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NGSS.HS-PS2-2

The equation to calculate momentum is

• p=mv
• p=1/2mv²
• p=mgh
• p=mg

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NGSS.HS-PS2-2

Which has more momentum: a car stopped at a red light or a bike moving at 15 mph?

• car
• bike
• they are equal
• cannot determine using the info provided

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NGSS.HS-PS2-2

A runner has a momentum of 720 kg m/s and is traveling at a velocity of 5 m/s. What is his mass?

• 14.4 kg
• 1400 kg
• 144 kg
• 360 kg

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NGSS.HS-PS2-2

A 2 kg cart has a momentum of 10 kg m/s. What is its velocity?

• 22 m/s
• .2 m/s
• 5.0 m/s
• 20 m/s

Tags

NGSS.HS-PS2-2

The impulse is ______ the change in momentum

• Greater than
• Equal to
• less than
• always double

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NGSS.HS-PS2-2