Movement Answers

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Second and third class levers are differentiated by __________.

the location of the fulcrum

the location of the load

the presence of multiple loads

the type of fulcrum present

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What distinguishes mass from weight?

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.

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.

Mass is a measure of an object's inertial force, and weight is the force exerted by that object on other objects.

Mass and weight are synonyms and ultimately describe the same principle.

Matter is __________.

the amount of energy contained within an object

a measure of the force gravity exerts on objects

something that has mass and occupies space

a measure of an object's inertial force

The load is the pivot point of a lever.

Which of the following is NOT a component of a lever?

effort

tension

fulcrum

load

The ankle is a third class lever.

Swinging a tennis racket against a ball is an example of a third class lever.

What distinguishes the three different classes of levers found in the human body?

where they are located in the body

how useful they are for performing work

where the components of the lever are located

how many moving parts the lever has

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