Harnessing Human Energy End of Unit Assessment

Front

What happens to energy when it changes types?

Back

Energy converts when it changes types; for example, kinetic energy changes to potential energy and potential energy changes to light energy.

Front

What kind of energy does a skier at the top of a mountain have?

Back

Potential energy.

Front

What type of energy does a wind-up toy have when it is wound up and moving?

Back

A wind-up toy has kinetic and potential energy.

Front

True or False: Only living things have energy.

Back

False.

Front

What type of sources do scientists try to use while researching?

Back

Reliable sources.

Front

Define kinetic energy.

Back

Kinetic energy is the energy of an object in motion.

Front

Define potential energy.

Back

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

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.

Front

Give an example of energy conversion.

Back

An example of energy conversion is a light bulb converting electrical energy into light energy.

Front

What is renewable energy?

Back

Renewable energy is energy that is collected from resources that are naturally replenished, such as sunlight, wind, and water.