Impulse and Momentum Quiz

1. Which of the following has the greatest momentum?

• 0.2 kg ball moving at 400 m/s

• 500 kg car traveling at 16 m/s

• 2000 kg truck traveling at 9 m/s

• 50 kg child skateboarding at 4 m/s

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NGSS.HS-PS2-2

1. Which of the following graphs best characterizes the mathematical relationship between momentum and velocity?

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NGSS.HS-PS2-2

1.     A 3.0-kilogram object is acted upon by an impulse having a magnitude of 15 N-s. What is the magnitude of the object’s change in momentum due to this impulse?

• (A)   3.0 kg m/s

• (B)   5.0 kg m/s

• (C)   15 kg m/s

• (D)  45 kg m/s

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NGSS.HS-PS2-1

NGSS.HS-PS2-2

Identical net forces act for the same length of time on two different spherical masses.

 

1. Which of the following describes the change in linear momentum of the smaller mass compared to that of the larger mass?

• 1. (A)   It is smaller than the change in linear momentum of the larger mass but not zero.

• 1. (B)   It is larger than the change in linear momentum of the larger mass.

• 1. (C)   It is equal to the change in linear momentum of the larger mass.

• 1. (D)  It is zero.

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NGSS.HS-PS2-1

NGSS.HS-PS2-2

Identical net forces act for the same length of time on two different spherical masses.

1.    Which of the following describes the change in velocity of the smaller mass compared to that of the larger mass?

• (A)   It is smaller than the change in velocity of the larger mass but not zero.

• (B)   It is larger than the change in velocity of the larger mass.

• (C)   It is equal to the change in velocity of the larger mass.

• (D)  It is zero.

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NGSS.HS-PS2-1

1.     Using the concepts of impulse and momentum, explain why the force exerted on the crash test dummy is considerably smaller in phase 2 of the experiment, even though the car was traveling at the same speed in both phases.

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NGSS.HS-PS2-1

NGSS.HS-PS2-3