Potential and Kinetic Energy

Question 1

This diagram shows a baseball’s motion.

Revolt · Accepted Answer

Maximum potential energy is at point R.

Question 2

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

Revolt · Accepted Answer

velocity and mass

Question 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: )

Revolt · Accepted Answer

15 kg

Question 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?

Revolt · Accepted Answer

If Tyrone stands at the top of a 2 m high ramp, his potential energy will be greater than Ella’s.

Question 5

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

Revolt · Accepted Answer

25 J

Question 6

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?

Revolt · Accepted Answer

Kinetic energy increases and potential energy decreases when the velocity of an object increases.

Question 7

Olivia is on a swing at the playground.

Revolt · Accepted Answer

X

Question 8

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: )

Revolt · Accepted Answer

0.4 kg

Question 9

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)

Revolt · Accepted Answer

882 J

Potential and Kinetic Energy Answers

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