4th-Energy and Motion

The scientific definition of energy is the ability to

• change states of matter.
• change shape
• causes a change in health
• cause motion or change

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

• less energy than the heavier object.
• more energy than the heavier object.
• an unpredictable amount of energy.
• the same amount of energy as the heavier object.

When the object moves slower, its energy of motion

• is zero.
• increases
• decreases
• remains constant

How can a ball be given stored energy?

• roll it down a hill
• lift it up to a high shelf.
• drop it from the top of a ladder.
• throw it to another person

Scientists say that energy is conserved because energy

• cannot be transferred between objects.
• is created when a still object starts moving.
• cannot be created or destroyed.
• can be stored in an object raised to height.

What is energy?

• the speed of an object is able to move at
• an object that has the potential to move
• the shift in motion from one object to another.
• the ability to make an object move or change.

Which of the following is an example of an object with energy?

• a box car rolling down a hill
• a basketball bouncing on a court
• wind blowing a leaf through the air
• all of the above

A splash created by a rock dropping in water is an example of

• creating energy
• storing energy
• transferring energy
• saving energy

Which of the following would have the most energy?

• a fast and heavy object
• a fast and light object
• a slow and heavy object
• a slow and light object

When a moving object stops moving, it has ____ energy.

• created
• destroyed
• gained
• lost