Answers2026 Summer 305 CR_2002040-MJ Comprehensive Science 1Potential and Kinetic Energy

Potential and Kinetic Energy Answers

10 verified answers1 views
1
Free Preview

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.
2
Free Preview

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
3

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
4

Ella has a mass of 56 kg, and Tyrone has a mass of 68 kg. Ella is standing at the top of a skateboard ramp that is 1.5 meters tall. Which conclusion is best supported by the given information?

A
If Tyrone stands at the top of the same ramp, his potential energy will be less than Ella’s.
B
If Tyrone stands at the top of a 1 m high ramp, his potential energy will be greater than Ella’s.
C
If Tyrone stands at the top of the same ramp, his potential energy will be the same as Ella’s.
D
If Tyrone stands at the top of a 2 m high ramp, his potential energy will be greater than Ella’s.
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

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
7

Let's consider a scenario of a roller coaster ride. As the roller coaster at the top begins to descend, it loses height, which means its potential energy decreases and kinetic energy starts increasing and reaches its maximum value.By using the above scenario, which statement best compares potential and kinetic energy?

A
Objects always have more potential energy than kinetic energy.
B
Kinetic energy increases and potential energy decreases when the velocity of an object increases.
C
Only potential energy decreases when an object’s height increases.
D
Objects always have more kinetic energy than potential energy.
8

Olivia is on a swing at the playground.

Question illustration
A
W
B
X
C
Y
D
Z
9

A soccer ball is traveling at a velocity of 50 m/s. The kinetic energy of the ball is 500 J. What is the mass of the soccer ball? (Formula: )

Question illustration
A
0.1 kg
B
0.2 kg
C
0.4 kg
D
0.5 kg
10

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
11

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.
12

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
13

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
14

The diagram shows a ball resting at the top of a hill.

Question illustration
A
The potential energy in the system is greatest at X.
B
The kinetic energy in the system is greatest at X.
C
Total energy in the system decreases as the ball moves from X to Y.
D
Total energy in the system increases as the ball moves from X to Y.
15

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
16

A roller coaster with a potential energy of 235,200 J sits at the top of a 30 m high hill. What is the mass of the roller coaster? (Formula: PE = mgh)

A
800 kg
B
7,840 kg
C
8,000 kg
D
78,400 kg
17

A car is moving at 12 m/s and has a mass of 600 kg. What is the kinetic energy of the car? (Formula: )

Question illustration
A
36,300 J
B
43,200 J
C
72,600 J
D
86,400 J
18

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
19

Let's consider a scenario of a roller coaster ride. As the roller coaster at the top begins to descend, it loses height, which means its potential energy decreases and kinetic energy starts increasing and reaches its maximum value.By using the above scenario, which statement best compares potential and kinetic energy?

A
Objects always have more potential energy than kinetic energy.
B
Kinetic energy increases and potential energy decreases when the velocity of an object increases.
C
Only potential energy decreases when an object’s height increases.
D
Objects always have more kinetic energy than potential energy.
20

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.

Did you find these answers helpful?

More from this Course

Quiz
15 verified answers

Potential and Kinetic Energy

Quiz
10 verified answers

Potential and Kinetic Energy

Quiz
10 verified answers

Potential and Kinetic Energy