Potential and Kinetic Energy

Question 1

The diagram shows a person holding a bow and arrow.

Revolt · Accepted Answer

releasing the string

Question 2

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 3

This diagram shows a baseball’s motion.

Revolt · Accepted Answer

Maximum potential energy is at point R.

Question 4

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 5

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

Revolt · Accepted Answer

The potential energy in the system is greatest at X.

Question 6

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

Question 7

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

Revolt · Accepted Answer

its motion

Question 8

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

Revolt · Accepted Answer

velocity and mass

Question 9

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

Revolt · Accepted Answer

Z

Question 10

This diagram shows a skier moving down a hill.

Revolt · Accepted Answer

The skier has potential and kinetic energy.

Potential and Kinetic Energy Answers