Physical Science Lessons 1-4 Proof of Mastery Review

Front

What is gravitational energy?

Back

Gravitational energy is the potential energy an object has due to its position in a gravitational field, typically related to its height above the ground.

Front

How can energy be transformed?

Back

Energy can be converted from one type to another, such as from potential energy to kinetic energy.

Front

True or False: An elevated object has gravitational energy.

Back

False. An elevated object does have gravitational energy.

Front

Where is kinetic energy greatest on a roller coaster?

Back

At the bottom of the highest hill.

Front

What type of energy is converted when a compressed spring is released?

Back

Elastic energy is converted to kinetic energy.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state.

Front

What happens to energy in a closed system?

Back

In a closed system, energy is conserved; it can change forms but cannot be created or destroyed.

Front

What is an example of energy conversion?

Back

A common example is a roller coaster: as it climbs, kinetic energy is converted to potential energy, and as it descends, potential energy is converted back to kinetic energy.

Front

What is the law of conservation of energy?

Back

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.