8th Energy Unit

Front

What is Potential Energy?

Back

Potential Energy is the energy stored in an object due to its position or state. It has the potential to do work when released.

Front

What are the units of Energy?

Back

The units of energy are joules.

Front

Can energy be created or destroyed?

Back

No, energy cannot be created or destroyed; it can only be transferred or changed from one form to another.

Front

Where is the greatest Potential Energy on a roller coaster?

Back

The greatest Potential Energy on a roller coaster is at the highest point, typically labeled as point Z.

Front

Is this an example of Potential Energy? (Image of a ball at the top of a hill)

Back

YES

Front

Is this an example of Potential Energy? (Image of a ball rolling down a hill)

Back

NO

Front

What is Kinetic Energy?

Back

Kinetic Energy is the energy of an object in motion, dependent on its mass and velocity.

Front

What is the formula for Kinetic Energy?

Back

The formula for Kinetic Energy (KE) is KE = 1/2 mv², where m is mass and v is velocity.

Front

What is Mechanical Energy?

Back

Mechanical Energy is the sum of Potential Energy and Kinetic Energy in an object.

Front

What is an example of energy transfer?

Back

An example of energy transfer is when a ball is thrown; the chemical energy in the muscles is converted to kinetic energy of the ball.