Momentum and Collisions Quiz

    A steel ball whose mass is 2.0 kg is rolling at a rate of 2.8 m/s. What is its momentum?

• 5.6 kg x m/s

• 1.4 kg x m/s

• 4.8 kg x m/s

• 0.8 kg x m/s

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A marble is rolling at a velocity of 1.5 m/s with a momentum of 0.10 kg x m/s. What is its mass?

• 15 kg

• 1.6 kg

• 0.067 kg

• 1.4 kg

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NGSS.HS-PS2-2

A passenger car (m = 10.0 kg) and a flat car (m = 7.5kg) collide and stick together. The left car was initially traveling at 3.5 m/s going to the right, and the right car was initially traveling at a velocity of 2.2 m/s to the left. What is the final velocity of the coupled cars?

• 0.75 m/s

• 1.057 m/s

• 0.95 m/s

• 1.0 m/s

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NGSS.HS-PS2-2

A 9.00 kg mass is moving to the right with a velocity of 14.0 m/s. A 12.0 kg mass is moving to the left with a velocity of 5.00 m/s. Assuming that these two have a head on collision and stick together, what will be the final velocity of the combination?

• 4.43 m/s

• 8.86 m/s

• 0.32 m/s

• 3.14 m/s

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NGSS.HS-PS2-2

A 1250 kg car is moving down the highway with a velocity of 32.0 m/s when it bumps into the car ahead of it which has a mass of 875 kg and a velocity of 25.0 m/s. After the collision, the two cars stick together. What will be the resulting velocity of the two cars together?

• 8.52 m/s

• 0.18 m/s

• 29.18 m/s

• 0.034 m/s

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NGSS.HS-PS2-2

Two train cars of identical mass (m = 10.0 kg) collide and separate. The left car was initially traveling at 2.0 m/s to the right, and the right car is initially traveling at a velocity of 3.0 m/s left. After the collision, the left car is traveling at a velocity of 2.5 m/s to the left. What is the final velocity of the right car?

• 0.67 m/s

• 1.5 m/s

• 2.5 m/s

• 3.0 m/s

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NGSS.HS-PS2-2

A red ball of mass 0.2 kg hits a blue ball of mass 0.25 kg, in an elastic collision, and the red ball comes to a stop. The red ball has a velocity of 5 m/s, and the blue ball was at rest. What is the final velocity of the blue ball?

• 9 m/s

• 5 m/s

• 4 m/s

• 1 m/s

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NGSS.HS-PS2-2

Hockey puck A (2kg) travels with a velocity of 40 m/s to the right when it collides with hockey puck B (1.6kg), which was originally at rest. After the collision, puck A is stationary. Assume no external forces are in play and that the momentum of the pucks are conserved. What is the final velocity of puck B after the collision?

• 40 m/s

• 90 m/s

• 10 m/s

• 50 m/s

Tags

NGSS.HS-PS2-2