Exam 6 Preap Numbers 1-5 2016-2017

1. Which of the following is due to inertia?

A ball whirled in a circular motion stays in one plane.

A ball whirled in a circular motion experiences centripetal acceleration directed toward the center of motion.

A ball whirled in a circular motion experiences a centripetal force directed toward the center of motion.

A ball whirled in a circular motion will move off in a straight line if the string breaks.

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2. What term describes a force that causes an object to move in a circular path?

Circular force

Centripetal acceleration

Centripetal force

Centrifugal force

3. A ball is whirled on a string, then the string breaks. What causes the ball to move off in a straight line?

Centripetal acceleration

Centripetal force

Centrifugal force

Inertia

4. When a car makes a sharp left turn, what causes the passengers to move toward the right side of the car?

Centripetal acceleration

Centripetal force

Centrifugal force

Inertia

5. A centripetal force acts

In the same direction as tangential speed.

In the direction opposite tangential speed.

Perpendicular to the plane of circular motion.

Perpendicular to tangential speed but in the same plane.

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