Module 1 Forces and Motion Study Guide

What is kinetic energy?

• energy that is stored in the position, or structure of an object

• energy that is decreasing

• energy that is increasing

• the energy of a moving object

2. 2. Select all the ways that force affects the motion of objects.

• A ball rolling to a stop

• A book at rest on a flat surface

• Catching a soccer ball

• blowing on a pinwheel

• Sitting still on a chair

3. 3. The law of conservation of energy states that energy cannot be

• gained or

• used or

• created or

• heated or

4. 4. As the amount of force on an object increases, the acceleration of the object

• increases

• decreases

5. 5. Which best describes the type of energy that a bike has when it travels on a flat sidewalk?

• kinetic energy

• potential energy

• sound energy

• chemical energy

6. 6. When two cars hit each other with a force the cars may stop or change direction. What is the stop or change of direction due to?

• impact

• gravity

• motion

• matter

7. 7. The skateboarder will not stop unless acted upon by

• balanced

• unbalanced

8. 8. If two puppies pull on a plastic ring with equal force, the ring does not move. This is an example of

• balanced forces

• unbalanced forces

• acceleration

• friction

9. 9. When an elevator is accelerating upward in a building, there are unbalanced forces acting upon it.

• true

• false

10. 10. How does energy change when work is done on an object?

• The object does nothing

• The object could move or change

• The object turns into a new object