Kinetic and Potential Energy Conversions

Which term describes potential energy?

• stored energy

• kinetic energy

• future energy

• invisible energy

Tags

NGSS.MS-PS3-2

A rock on top of a hill has energy due to its position. What is this energy called?

• chemical energy

• kinetic energy

• gravitational potential energy

• elastic potential energy

Tags

NGSS.MS-PS3-2

What is the mechanical energy of an object?

• the sum of all types of kinetic energy

• the sum of all types of potential energy

• the sum of all kinetic energy and all potential energy

• the difference between the kinetic energy and the potential energy

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What is the Law of Conservation of Energy?

• The total amount of energy on Earth is constant.

• Energy can only be created when a force acts on an object.

• Heating an object creates energy and cooling destroys energy.

• Energy cannot be created or destroyed but it can be transformed.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Matt and Kim use bowling balls with different masses. If they both roll their bowling balls at exactly the same speed, which statement is true?

• The bowling ball with less mass has more kinetic energy.

• The bowling ball with more mass has more kinetic energy.

• The kinetic energies of the two bowling balls are the same.

• There is not enough information to compare the kinetic energies.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Energy is the ability to cause what?

• change

• mass

• force

• speed

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

This illustration shows a bookshelf with four identical books. How does the gravitational potential energy of the four books compare?

• The books have the same gravitational potential energy.

• The gravitational potential energy increases from top to bottom (lower shelf - more g.p.e.)

• The gravitational potential energy decreases from top to bottom (higher shelf - more g.p.e.)

• The books are not moving so they do not have gravitational potential energy.

Tags

NGSS.MS-PS3-2

Which of the following examples of a cheetah has the most kinetic energy?

• a cheetah that is resting

• a cheetah that is running

• a cheetah that is walking

• a cheetah that is eating

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which of these is an example of kinetic energy?

• wind blowing

• water on a glass

• a can of vegetables

• the walls of a building

Which of these is an example of the conversion of elastic potential energy into kinetic energy?

• a person running on a level track

• an apple falling from a tree to the ground

• a windup spring making a toy car move across the floor

• a rubber band that is being stretched to twice its normal length