Honors Physical Science Chapter 4 Exam Review
True/False
Indicate whether the statement is true or false.
____ 1. Balanced forces acting on an object cause the object to accelerate.
____ 2. Gravity causes all falling objects to accelerate at a rate of 98 m/s2.
____ 3. Acceleration is defined as the rate of change of position.
____ 4. The momentum of a 5,000-kg truck that is standing still is greater than the momentum of a 3,000-kg truck that is also at rest.
____ 5. The projectile velocity is the highest velocity that will be reached by a falling object.
____ 6. When an object falls, it is reacting to the force of gravity.
____ 7. Jane is on a merry-go-round that is moving at a constant speed. Her velocity is also constant.
____ 8. Momentum is a property of an object and cannot be transferred from that object to another object.
____ 9. Objects in Earth's orbit appear to be weightless because they are in free fall.
____ 10. Friction is a force that encourages motion between two surfaces that are touching each other.
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____ 11. The upward force on an object falling through the air is ____.
a. | air resistance | c. | momentum |
b. | inertia | d. | terminal velocity |
____ 12. The relationship among mass, force, and acceleration is explained by ____.
a. | conservation of momentum |
b. | Newton's first law of motion |
c. | Newton's second law of motion |
d. | Newton's third law of motion |
____ 13. A feather will fall through the air more slowly than a brick because of ____.
a. | air resistance | c. | inertia |
b. | gravity | d. | momentum |
____ 14. In the absence of air, a penny and a feather that are dropped from the same height at the same time will ____.
a. | fall at different rates | c. | float |
b. | fall at the same rate | d. | not have momentum |
____ 15. The acceleration due to gravity is ____.
a. | 98 m/s2 | c. | 9.8 m/s |
b. | 9.8 m/s2 | d. | 0.98 m/s |
____ 16. According to Newton's second law of motion, ____.
a. | F = m · a | c. | F = p · a |
b. | F = m · v | d. | F = p · v |
____ 17. When an object moves in a circular path, it accelerates toward the center of the circle as a result of ____.
a. | centripetal force | c. | gravitational force |
b. | frictional force | d. | momentum |
____ 18. The path of a projectile is ____.
a. | curved | c. | always vertical |
b. | always horizontal | d. | straight |
____ 19. For any object, the greater the force that's applied to it, the greater its ____ will be.
a. | acceleration | c. | inertia |
b. | gravity | d. | velocity |
____ 20. The size of the gravitational force between two objects depends on their ____.
a. | frictional forces |
b. | inertia |
c. | masses and the distance between them |
d. | speed and direction |
____ 21. As you get farther from the center of Earth, your weight will ____.
a. | decrease | c. | remain the same |
b. | increase | d. | can't tell from information given |
____ 22. When a force is exerted on a box, an equal and opposite force is exerted by the box. These forces are called ____ forces.
a. | action-reaction | c. | frictional |
b. | centripetal | d. | gravitational |
____ 23. A real car moving at 10 km/h has more momentum than a toy car moving at the same speed because the real car ____.
a. | generates less friction |
b. | has greater mass |
c. | has less mass |
d. | has greater forward motion |
____ 24. In the equation p = m · v, the p represents ____.
a. | friction | c. | momentum |
b. | inertia | d. | position |
____ 25. The statement "to every action there is an equal and opposite reaction" is ____.
a. | the law of conservation of momentum |
b. | Newton's first law of motion |
c. | Newton's second law of motion |
d. | Newton's third law of motion |
____ 26. The unit of momentum is ____.
a. | kg · m | c. | kg · m/s2 |
b. | kg · m/s | d. | m/s2 |
____ 27. When two balls collide, the momentum of the balls after the collision is explained by ____.
a. | the law of conservation of momentum |
b. | Newton's first law of motion |
c. | Newton's second law of motion |
d. | Newton's third law of motion |
____ 28. A 300-N force acts on a 25-kg object. The acceleration of the object is ____.
a. | 7,500 m/s2 | c. | 25 m/s2 |
b. | 300 m/s2 | d. | 12 m/s2 |
____ 29. A 3,000-N force acts on a 200-kg object. The acceleration of the object is ____.
a. | 50 m/s2 | c. | 15 m/s2 |
b. | 26 m/s2 | d. | 150 m/s2 |
____ 30. An object that is in free fall seems to be ____.
a. | not moving |
b. | slowed by air resistance |
c. | speeded up by air resistance |
d. | weightless |
____ 31. If gravity did NOT affect the path of a horizontally thrown ball, the ball would ____.
a. | go straight up |
b. | fall straight down |
c. | follow a curved path |
d. | travel horizontally |
Figure 3-1
____ 32. A ball attached to a string is being swung in a clockwise circular path as shown in Figure 3-1. Assume the string breaks at point A. In which direction will the ball be traveling an instant later?
a. | direction a | c. | direction c |
b. | direction b | d. | direction d |
____ 33. A ball attached to a string is being swung in a clockwise circular path as shown in Figure 3-1. In which direction will the acceleration on the ball be when the ball passes point A?
a. | direction a | c. | direction c |
b. | direction b | d. | direction d |
Honors Physical Science Chapter 4 Exam Review
Answer Section
TRUE/FALSE
1. ANS: F PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 1/3 STA: PS1.1 CS2.1
2. ANS: F PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 2/2 STA: PS1.1 CS2.1
3. ANS: F PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 1/3 STA: PS1.1 CS2.1
4. ANS: F PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 3/2 STA: PS1.1 CS2.1
5. ANS: F PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 2/4 STA: PS1.1 CS2.1
6. ANS: T PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 3/1 STA: PS1.1 CS2.1
7. ANS: F PTS: 1 DIF: Webb's Depth of Knowledge II
OBJ: 1/1 STA: PS1.1 CS2.1
8. ANS: F PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 3/4 STA: PS1.1 CS2.1
9. ANS: T PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 2/2 STA: PS1.1 CS2.1
10. ANS: F PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 1/2 STA: PS1.1 CS2.1
MULTIPLE CHOICE
11. ANS: A PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 3/1 STA: PS1.1 CS2.1
12. ANS: C PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 2/3 STA: PS1.1 CS2.1
13. ANS: A PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 3/1 STA: PS1.1 CS2.1
14. ANS: B PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 1/3 STA: PS1.1 CS2.1
15. ANS: B PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 2/1 STA: PS1.1 CS2.1
16. ANS: A PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 1/3 STA: PS1.1 CS2.1
17. ANS: A PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 2/4 STA: PS1.1 CS2.1
18. ANS: A PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 2/3 STA: PS1.1 CS2.1
19. ANS: A PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 1/4 STA: PS1.1 CS2.1
20. ANS: C PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 2/1 STA: PS1.1 CS2.1
21. ANS: A PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 2/1 STA: PS1.1 CS2.1
22. ANS: A PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 3/2 STA: PS1.1 CS2.1
23. ANS: B PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 3/4 STA: PS1.1 CS2.1
24. ANS: C PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 3/3 STA: PS1.1 CS2.1
25. ANS: D PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 3/1 STA: PS1.1 CS2.1
26. ANS: B PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 3/3 STA: PS1.1 CS2.1
27. ANS: A PTS: 1 DIF: Webb's Depth of Knowledge I
OBJ: 3/4 STA: PS1.1 CS2.1
28. ANS: D PTS: 1 DIF: Webb's Depth of Knowledge II
OBJ: 1/4 STA: PS1.1 CS2.1
29. ANS: C PTS: 1 DIF: Webb's Depth of Knowledge II
OBJ: 1/4 STA: PS1.1 CS2.1
30. ANS: D PTS: 1 DIF: Webb's Depth of Knowledge II
OBJ: 2/2 STA: PS1.1 CS2.1
31. ANS: D PTS: 1 DIF: Webb's Depth of Knowledge II
OBJ: 2/3 STA: PS1.1 CS2.1
32. ANS: D PTS: 1 DIF: Webb's Depth of Knowledge II
OBJ: 1/1 STA: PS 1.1 CS2.2
33. ANS: B PTS: 1 DIF: Webb's Depth of Knowledge II
OBJ: 1/1 STA: PS1.1 CS2.1