Multiple Choice. Choose the letter of the correct answer.
1. Force can make things ____________.
a. stay still b. move c. stay in the same place d. change color
2. Force is used to ____________.
a. read a book b. cry c. stand still d. Throw a baseball
3. What is the unit of energy?
a. Meter b. Joule c. Kilogram d. Newton
4. Gravity is a force that ____________.
a. Pull things down
b. Pushes things up
c. Pull things up
d. All of the above
5. If you ride a bike uphill_________ makes it harder to go fast.
a. speed b. movement c. time d. gravity
6. It is used to push or pull the door open.
a. Speed b. Light c. Force d. Heat
7. Which of the following is made for movement?
a. house b. plate c. car d. chalk
8. The force that pulls falling objects toward Earth is called
a. Gravity b. Free fall c. Inertia d. Acceleration
9. If you push a ball on a smooth floor with a big force it will ____.
a. move very fast
b. move very slow
c. stay still
d. not move at all
10. This law states that “The acceleration of an object is directly proportional to the force applied and
inversely proportional to its mass”
a. Law of Inertia
b. Law of Acceleration
c. Law of Interaction
d. All of the choice
11. Energy due to motion is __________energy.
a. Potential b. Kinetic c. Thermal d. Chemical
12. The __________ an object moves, the ___________ kinetic energy it has.
a. faster; more b. faster; less c. slower; more d. None of the choices
13. The energy that is stored in an object at rest.
a. Potential b. Kinetic c. Thermal d. Chemical
14. Gravitational potential energy depends on the ________and ________of the objects.
a. Friction and movement
b. Mass and movement
c. Height and Friction
d. Height and mass
15. What type of energy a stretched rubber band has?
a. Kinetic b. Kinetic c. Potential d. Electrical
16. How much potential energy is at the top of a hill on a roller coaster ride?
a. 100% b. 50% c. 20% d. 0%
17. When the net force is equal to zero the forces are said to be ____________.
a. Balanced b. Unbalanced c. Changing d. Unchanged
18. As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential
energy?
a. Both the potential energy and kinetic energy decrease.
b. The potential energy decreases while the kinetic energy increases.
c. The kinetic energy decrease while the potential energy increases.
d. The kinetic and potential energy remains constant.
19. Energy can be _____________ or changed from one type to another.
a. destroyed b. transferred c. created d. ignored
20. Which would have the greatest gravitational potential energy?
a. A 4lb rat on a school desk
b. A 45lb dog in an oak tree
c. A 14-pound platypus on a swing
d. A 45 lbs. child on a bike
21. Energy cannot be created or destroyed, only converted from one from to another.
a. True b. False c. Maybe d. Not sure
22. In which is the best example that something has kinetic energy?
a. A car parked on a steep hill
b. A tennis ball rolling across the court
c. A picture hanging on the wall
d. A piece of coal before its burned
23. This law states that “ A body will remain at rest or move at constant velocity unless acted upon by
an external net or unbalanced force”
a. Law of Inertia
b. Law of Acceleration
c. Law of Interaction
d. All of the choice
24. Can energy be changed into another type of energy?
a. Yes, it can be changed into another type of energy.
b. No, it cannot be changed into another type of energy.
c. Yes, but it depends on the type of energy.
d. All of the above