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1. The presence of energy in an environment is called __________________.

a. force

b. gravity

c. mass

2. The capacity to do work is called _____________.

a. power

b. gravity

c. energy

3. The measure of the amount of substance based on the object's resistance to change is called ____________.

a. mass

b. energy

c. gravity

4. The amount of time in which work is done is called _______________.

a. force

b. energy

c. power

5. Which of the three laws of motion demonstrates the example of a ball that is moved from its resting place because it was pushed during contact made by another ball?

a. the law of inertia

b. the law of applied force

c. the law of action and reaction

6. Which of the three laws of motion demonstrates an example of while a person is swimming, the person pushes the water backwards as the water pushes the person forward?

a. the law of inertia

b. the law of applied force

c. the law of action and reaction

7. Which of the three laws of motion demonstrates the example of the force of the wind that blows through the wind chimes, causing the chimes to ring?

a. the law of inertia

b. the law of applied force

c. the law of action and reaction

8. The formula that expresses the amount of work done is W = F x D; where W = work, F = force, and D = distance.

How much work is done when 200 pounds are lifted 4 feet?

a. 750 foot-pounds of work is done

b. 800 foot-pounds of work is done

c. 920 foot-pounds of work is done

9. Which kind of energy is used when a Ferris wheel is rotating?

a. kinetic

b. potential

c. neither

10. Which kind of energy is used when a person is standing in a grocery store aisle?

a. kinetic

b. potential

c. neither

11. Which kind of energy is used when turning on a lamp?

a. nuclear energy

b. electrical energy

c. solar energy

12. Which kind of energy is used when heat comes from the Sun?

a. solar energy

b. chemical energy

c. nuclear energy

13. Which kind of energy is used when two or more substances are combined?

a. nuclear energy

b. chemical energy

c. solar energy

14. Which kind of energy is used when two atoms are joined together?

a. chemical energy

b. steam energy

c. nuclear energy

15. The measure of how much twisting force on an object causes the object to rotate is called ________.

a. torque

b. velocity

c. energy

16. Which of the following is a particle that represents the smallest amount of light and travels at the speed of light because it has no mass?

a. electrons

b. protons

c. photons

17. Albert Einstein's theory regarding the relationship of matter, time, and space shows how mass and energy are equal and that mass, length, and time change with speed is called ________.

a. relativity

b. quantum theory

c. plate tectonics theory

18. The amplified vibration of one object at the same natural frequency of a second object forces the second object to vibrate is called ________.

a. resonance

b. conduction

c. entropy

19. The force that pulls an object towards the center of the earth is called _____________.

a. resonance

b. torque

c. gravity

20. The number of a repeated event per unit time is called __________.