Movement Answers

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1
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Second and third class levers both have __________.

A
the fulcrum between the effort and load
B
effort applied in the same place
C
two loads and fulcrums
D
the fulcrum at one end of the lever
2
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Matter is __________.

A
the amount of energy contained within an object
B
a measure of the force gravity exerts on objects
C
something that has mass and occupies space
D
a measure of an object's inertial force
3

What lever has resistance between the axis (fulcrum) and the force (effort)?

A
first
B
second
C
third
D
fourth
4

The ankle is a third class lever.

A
T
B
F
5

A balance uses small metal weights of known mass to determine the mass of a substance. Where would a balance NOT function correctly?

Question illustration
A
in a vacuum on Earth
B
on the Moon's surface
C
on the Earth's highest mountain
D
in a zero gravity environment
6

The first class lever is the most common lever in the human body.

A
T
B
F
7

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

A
effort
B
tension
C
fulcrum
D
load
8

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

A
T
B
F
9

According to Newton's second law of motion, force is equal to mass times acceleration.

A
T
B
F
10

What is the difference between velocity and acceleration?

A
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.

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