Exam 5 Target 8 Retake Preap 2016-2017

1. Which of the following best describes the momentum of two bodies after a two-body collision if the kinetic energy of the system is conserved?

Must be less

Might also be conserved

Must also be conserved

Is doubled in value

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Exam 5 Target 8 Retake Preap 2016-2017 - Quiz

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2. Two soccer balls collide in an inelastic collision. Which of the following is true?

Both momentum and kinetic energy are conserved.

Momentum is conserved, but kinetic energy is not conserved.

Kinetic energy is conserved, but momentum is not conserved.

Neither momentum nor kinetic energy is conserved.

3. A carbon atom collides with another carbon atom in an elastic collision. Which of the following is true?

Both momentum and kinetic energy are conserved.

Momentum is conserved but kinetic energy is not conserved.

Kinetic energy is conserved but momentum is not conserved.

Neither momentum nor kinetic energy is conserved.

4. In an inelastic collision between two objects with unequal masses,

The total momentum of the system will increase.

The total momentum of the system will decrease.

The kinetic energy of one object will increase by the amount that the kinetic energy of the other object decreases.

The momentum of one object will increase by the amount that the momentum of the other object decreases.

5. In practice, a red ice hockey puck collides with a blue, stationary hockey puck in an elastic head-on collision. Both the red and blue pucks have equal masses. Which statement is true of the pucks after the collision.

A. Both the red and blue pucks move away together.

B. The blue puck stops the red puck, then moves away from the collision with twice the red puck’s original velocity.

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Mar 21, 2022

Quiz Edited by
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Oct 20, 2015

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Sfduke