Energy End of Unit Assessment

Energy is the ability to…

• make heat

• do work

• Transform

What is potential energy?

• Energy an object has because it is in motion

• Energy stored in an object as a result of its position or state

What is the Law of Conservation of energy?

• energy can be created but not destroyed

• energy can be destroyed but not created

• energy can neither be created or destroyed

Name these three forms of energy. (The images show: a nuclear power plant, a slingshot, and a gas pump)

• Nuclear, Mechanical, Chemical

• Thermal, Electrical, Sound

• Solar, Kinetic, Light

• Magnetic, Elastic, Gravitational

When you catch a moving ball, what happens to the kinetic energy?

• it is destroyed

• it is transferred to your hand

Name an example of energy transfer.

• A ball rolling down a hill

• A book on a table

• A closed box

• A stationary car

Name an example of energy transformation.

• A battery powering a flashlight

• A book on a table

• A glass of water

• A pencil eraser

What energy transformation does this diagram show?

• electric into kinetic

• chemical into mechanical

• electrical into light

What are fossil fuels made from?

• the remains of dead plants or animals

• in a factory using garbage and waste

• wind power

Name one disadvantage of using fossil fuels.

• They cause pollution. (Other valid answers: non-renewable, contribute to climate change, etc.)

• They are always renewable.

• They help reduce air pollution.

• They do not affect the environment.