Movement Answers
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The ankle is a third class lever.
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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.3
Force is based upon both mass and acceleration.
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F4
A balance uses small metal weights of known mass to determine the mass of a substance. Where would a balance NOT function correctly?
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in a vacuum on EarthB
on the Moon's surfaceC
on the Earth's highest mountainD
in a zero gravity environment5
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 objects6
Swinging a tennis racket against a ball is an example of a third class lever.
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F7
What distinguishes the three different classes of levers found in the human body?
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where they are located in the bodyB
how useful they are for performing workC
where the components of the lever are locatedD
how many moving parts the lever has8
What lever has resistance between the axis (fulcrum) and the force (effort)?
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firstB
secondC
thirdD
fourth9
According to Newton's second law of motion, force is equal to mass times acceleration.
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F10
Second and third class levers both have __________.
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the fulcrum between the effort and loadB
effort applied in the same placeC
two loads and fulcrumsD
the fulcrum at one end of the leverDid you find these answers helpful?
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