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Mastery Quiz
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1

Work is defined as
A)the product of the force and the perpendicular distance to the pivot point
B)the product of the force and the distance through which the force acts
C)the power divided the time
D)the product of the force and the potential energy
2

If an equivalent amount of work is done in a shorter period of time
A)less power is required
B)the same amount of power is required
C)more power is required
3

The fundamental unit of work and energy is the
A)Newton
B)Watt
C)Joule
D)Kepler
4

If the velocity of an object is doubled its kinetic energy is multiplied by
A)4
B)2
C)0.5
D)0.25
5

If the height of an object above a reference level is doubled its gravitational potential energy is multiplied by
A)4
B)2
C)0.5
D)0.25
6

Kinetic energy is energy that an object possesses because of its
A)position
B)motion
C)temperature
D)height
7

If the distance a spring is stretched from its equilibrium position is doubled the potential energy of the spring is multiplied by
A)4
B)2
C)0.5
D)0.25
8

The principle of conservation of energy states that if no work is done on a system by a nonconservative force
A)the kinetic energy is always a constant
B)the potential energy is always a constant
C)the total mechanical energy is a constant
D)the momentum is always a constant
9

Simple harmonic motion
A)repeats itself in equal intervals of time
B)occurs when there are no forces on the system
C)requires a constant force
10

A pendulum moves with the greatest velocity
A)at the end points of its swing
B)at the bottom of its swing
C)midway between the end point of its swing and the bottom of its swing





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