Movement Answers
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The load is the pivot point of a lever.
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F2
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Second and third class levers are differentiated by __________.
A
the location of the fulcrumB
the location of the loadC
the presence of multiple loadsD
the type of fulcrum present3
A balance uses small metal weights of known mass to determine the mass of a substance. Where would a balance NOT function correctly?
A
in a vacuum on EarthB
on the Moon's surfaceC
on the Earth's highest mountainD
in a zero gravity environment4
The first class lever is the most common lever in the human body.
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F5
What distinguishes mass from weight?
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Mass is a measure of the amount of matter in an object, while weight is a measure of the force of gravity on the object.B
Weight is a measure of the amount of matter in an object, while mass is a measure of the force of gravity on the object.C
Mass is a measure of an object's inertial force, and weight is the force exerted by that object on other objects.D
Mass and weight are synonyms and ultimately describe the same principle.6
What is BEST to say about a runner who is running at a constant velocity?
A
Their acceleration is positive.B
Their acceleration is negative.C
Their acceleration is zero.D
Their acceleration cannot be determined.7
What lever has resistance between the axis (fulcrum) and the force (effort)?
A
firstB
secondC
thirdD
fourth8
The elbow is considered a third class lever because __________.
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the effort is applied further from the fulcrum than the loadB
the effort is applied closer to the fulcrum than the loadC
the fulcrum is in the center of the leverD
the elbow is used to lift objects9
Force is based upon both mass and acceleration.
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F10
What is the difference between velocity and acceleration?
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Velocity describes an object's position and acceleration describes how fast it moves.B
Velocity is how fast an object moves and acceleration is the rate of change in velocity.C
Velocity is used to determine the magnitude of force acting on an object, and acceleration isn't.D
Velocity is a time-dependent property of an object, while acceleration is not.Did you find these answers helpful?
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