Exam 5 Numbers 11-15 Physics 2016-2017

1. 11. In what kind of collision is kinetic energy always conserved?

Elastic collision

Inelastic collision

Perfectly inelastic collision

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Exam 5 Numbers 11-15 Physics 2016-2017 - Quiz

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2. 12. A helium atom collides with another helium 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.

3. 13. Two playground 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.

4. 14. 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. 15. A billiard ball collides with a stationary identical billiard ball in an elastic head-on collision. After the collision, which of the following is true of the first ball?

It maintains its initial velocity.

It has one-half its initial velocity.

It comes to rest.

It moves in the opposite direction.

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Jan 17, 2016

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