Potential and Kinetic Energy Answers

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A sled is at rest at the top of a slope 2 m high. The sled has a mass of 45 kg. What is the sled’s potential energy? (Formula: PE = mgh)

A
90 J
B
56.8 J
C
441 J
D
882 J
2
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This diagram shows a skier moving down a hill.

Question illustration
A
The skier has potential and kinetic energy.
B
The skier has only potential energy.
C
The skier has only kinetic energy.
D
The skier does not have potential or kinetic energy.
3

Which two factors are used to calculate the kinetic energy of an object?

A
gravity and velocity
B
velocity and mass
C
mass and volume
D
volume and height
4

This diagram shows a baseball’s motion.

Question illustration
A
Kinetic energy becomes potential energy between points R and S.
B
Maximum potential energy is at point P.
C
Maximum potential energy is at point R.
D
Potential energy becomes kinetic energy between points P and Q.
5

What is the kinetic energy of a ball with a mass of 0.5 kg and a velocity of 10 m/s? (Formula:)

Question illustration
A
25 J
B
5 J
C
50 J
D
100 J
6

Olivia is on a swing at the playground.

Question illustration
A
W
B
X
C
Y
D
Z
7

The amount of kinetic energy an object has depends on which feature of the object?

A
its motion
B
its position
C
its gravity
D
its height
8

The diagram shows a person holding a bow and arrow.

Question illustration
A
pulling farther back on the string
B
releasing the string
C
holding the arrow higher
D
decreasing the mass of the arrow
9

An object has a velocity of 8 m/s and a kinetic energy of 480 J. What is the mass of the object? (Formula: )

Question illustration
A
7.5 kg
B
15 kg
C
60 kg
D
120 kg
10

The table shows information about four objects resting at the top of a hill. Which object is on the tallest hill?

Question illustration
A
W
B
X
C
Y
D
Z

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