Front

What happens to potential energy as a roller coaster car moves down the first hill?

Back

It is converted into kinetic energy.

Front

What does the law of conservation of energy state about energy in a closed system?

Back

The total amount of energy in a closed system remains constant.

Front

What does potential energy depend on?

Back

Position and shape.

Front

What is the standard unit to measure work and energy?

Back

Joule (J).

Front

Why is energy never 'lost' in a system according to the law of conservation of energy?

Back

It is only transformed into another form.

Front

Define kinetic energy.

Back

The energy an object possesses due to its motion.

Front

What is potential energy?

Back

The energy stored in an object due to its position or shape.

Front

Give an example of kinetic energy.

Back

A moving car or a running athlete.

Front

Give an example of potential energy.

Back

A drawn bow or water stored in a dam.

Front

What is the formula for kinetic energy?

Back

KE = 1/2 mv², where m is mass and v is velocity.