Name ____________________________
Date ____________________ Class_____________
Energy and Motion
Take Home Chapter Test
Multiple Choice
Write the letter of the correct answer on the line at the left.
______ 1. The basic SI unit of length is the
a. meter.
b. foot.
c. inch.
d. mile.
______ 2. Which of the following has kinetic energy?
a. a rock poised for a fall
b. an archer’s bow that is drawn back
c. a rolling bowling ball
d. a car waiting at a red light
______ 3. A car starts from a stopped position at a red light. At the end of 30 seconds,
its speed is 20 meters per second. What is the acceleration of the car?
a. 1.5 m/s
c. 0.7 m/s2
b. 0.7 m/s
d. 1.5 m/s2
______ 4. The rate at which energy is transferred is called
a. joules.
c. work.
b. power.
d. time.
______ 5. When you know both the speed and direction of an object’s motion, you
know the
a. average speed of the object.
b. instantaneous speed of the object.
c. distance the object has traveled.
d. velocity of the object.
______ 6. How would you calculate an object’s mechanical energy?
a. Add its kinetic and potential energies.
b. Multiply its kinetic and potential energies.
c. Subtract its kinetic energy from its potential energy.
d. Subtract its potential energy from its kinetic energy.
______ 7. If a bicyclist travels 30 kilometers in two hours, her average speed is
a. 30 km/h.
c. 15 km/h.
b. 60 km/h.
d. 2 km/h.
______ 8. The steepness of a line on a graph is called the
a. rise.
c. slope.
b. run.
d. vertical axis.
1
Chapter Tests
© Pearson Education, Inc., or its affiliates. All rights reserved.
Name ____________________________
Date ____________________ Class_____________
Energy and Motion (continued)
______ 9. In speed-versus-time graph, a straight line shows that acceleration is
a. decreasing.
c. changing.
b. increasing.
d. constant.
______ 10. Potential energy that depends on height is called
a. kinetic energy.
c. elastic potential energy.
b. gravitational potential energy.
d. mechanical energy.
Completion
Fill in the line to complete each statement.
11.
12.
13.
14.
Work is the transfer of ____________________ from one object to another.
Acceleration is the rate of change in ____________________.
Mechanical energy is associated with the position, motion, or ______________ of an object.
The law of ______________________________ states that energy cannot be created or
destroyed.
15. A large truck and a small car are moving at the same speed. The truck has greater kinetic
energy because its ____________________ is greater.
True or False
If the statement is true, write true. If it is false, change the underlined word or words to make the
statement true.
____________
16. The kinetic energy of a book on a shelf is equal to the work done to lift the
book to the shelf.
____________
17. Motion is measured relative to a reference point.
____________
18. A straight diagonal line on a distance-versus-time graph indicates constant
speed.
____________
19. A golf ball accelerates when either its speed or distance changes.
____________
20. If a toy car traveling at 10 cm/s passes a toy car moving at 10 cm/s in the
opposite direction, both cars have the same velocity.
2
Chapter Tests
© Pearson Education, Inc., or its affiliates. All rights reserved.
Name ____________________________
Date ____________________ Class_____________
Energy and Motion (continued)
Using Science Skills
Use the figure below to answer the following questions in the spaces provided.
21. What is the acceleration of the ball between 0 and 3 seconds?
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
22. What happened to the speed of the ball during the final two seconds?
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
23. Does the graph indicate that the ball decelerated? Explain your answer.
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
Essay
Write an answer for each of the following questions on a separate sheet of paper.
24. Describe the energy of a bowling ball as it rolls toward and hits a bowling pin.
25. Explain why a thrown football has both potential and kinetic energy. What is the combined
energy called?
3
Chapter Tests
© Pearson Education, Inc., or its affiliates. All rights reserved.
Name ____________________________
Date ____________________ Class_____________
Energy and Motion (continued)
Using Science Skills
Use the figure below to answer the following questions in the spaces provided.
26. Describe how the kinetic and potential energies of the pendulum are changing at position B. Is
any energy being lost or gained?
____________________________________________________________________________
____________________________________________________________________________
27. Describe how the kinetic and potential energies of the pendulum are changing at position D. Is
any energy being lost or gained?
____________________________________________________________________________
____________________________________________________________________________
28. If the pendulum is allowed to continue to swing, it will eventually come to a stop. Explain
why.
____________________________________________________________________________
____________________________________________________________________________
Essay
Write an answer for each of the following questions on a separate sheet of paper.
29. You are in a speedboat on a river moving in the same direction as the current. The
speedometer on the boat shows that its speed is 20 km/h. However, a person on the shore
measures the boat’s speed as 23 km/h. How is this possible?
30. Describe three ways you could change your velocity when riding a bicycle.
4
Chapter Tests
© Pearson Education, Inc., or its affiliates. All rights reserved.