Pre-AP Physics Exam 7 Numbers 1-5

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1. What is a measure of the ability of a force to rotate or accelerate an object around an axis?

A. centripetal force

B. lever arm

C. axis of rotation

D. torque

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A. Mass x velocity

B. Force x time

C. Force x lever arm

D. Mass x acceleration

A. Extend the lever arm by putting a pipe over the free end of the wrench

B. Exert a larger force

C. Have a friend help

D. make sure that the force is perpendicular to the lever arm

E. All of these

A. close to the top of the door

B. close to the bottom of the door

C. close to the hinges of the door

D. far from the hinges of the door

A. The closer the force is to the axis of rotation, the less torque is produced.

B. The closer the force is to the axis of rotation, the easier it is to rotate the object.

D. The farther the force is from the axis of rotation, the less torque is produced.

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