#1 Energy U2 L1,2

The scientific definition of energy is the ability to

• A. change states of matter.

• B. change shape.

• C. cause a change in health.

• D. cause motion or change.

If two objects with different weights are moving at the same speed, the lighter object has

• A. less energy than the heavier object.

• B. more energy than the heavier object.

Which of the following statements about stored energy is false?

• A. Stored energy can be transferred.

• B. Still objects always have stored energy.

• C. Objects with stored energy can cause change.

When an object moves slower, its energy of motion

• B. increases.

• C. decreases.

• D. remains constant.

How can a ball be given stored energy?

• A. Roll it down a hill.

• B. Lift it up to a high shelf.

• C. Drop it from the top of a ladder.

An object with potential energy

• A. has the ability to move.

• B. has lost all of its energy.

Scientists say that energy is conserved because energy

• C. cannot be created or destroyed.

• D. can be stored in an object raised to a height.

_______ is an example of an object with stored energy only.

• B. A book on the floor

• C. A man standing on a ladder

• D. A rock falling to the ground

What is energy?

• A. the speed an object is able to move at

• D. the ability to make an object move or change

Look at the picture of Phillip dropping a rock into the dirt. In this diagram, in which position does the rock have only stored energy?

• A. 1

• B. 2

• C. 3

• D. 4