Energy and Motion

Energy is:

• The ability to stand still

• The ability to do work

• Deposition

• A force

Which of these objects has potential energy?

• A ball bouncing

• A ball rolling

• A ball resting on a shelf

• None of the above

An open system is a system that freely exchanges energy and matter with its surroundings.

• True

• False

Chemical energy is stored in food

• True

• False

What is kinetic energy?

• Stored energy

• Energy due to motion

• Elastic potential energy

• Gravitational potential energy

How is nuclear energy released?

• By burning fuel

• It is never released

• By mixing liquids

• By atoms splitting apart or joining together

Chemical potential energy is found in objects that are compressed or stretched

• True

• False

The gravitational potential energy stored between objects and Earth depends on the object’s weight and

• Mass

• Height

What factors determine an object’s kinetic energy?

• Mass and speed

• Distance and force

• Mass and height

• Speed and height

An oven changes electric energy into thermal energy in order to cook food.

• True

• False