 Chapter 3 Exam Review

Physical Science Chapter 3 Exam

Modified True/False
Indicate whether the statement is true or false.  If false, change the identified word or phrase to make the statement true.

____          1.         Displacement includes both distance and direction. _________________________

____          2.         Motion occurs when there is a change in speed. _________________________

____          3.         If you were trying to get out of the way of a storm, you would need to know the speed at which it was moving. _________________________

____          4.         The total distance traveled divided by the constant speed is the average speed. _________________________

____          5.         The relationship s = d/t can be used to calculate speed, distance or time. _________________________

____          6.         Acceleration occurs when velocity changes. _________________________

____          7.         If you roll a ball up a hill, it undergoes positive acceleration. _________________________

____          8.         When you push on a sled and it begins to go downhill, you cause negative acceleration. _________________________

____          9.         Acceleration is calculated by dividing change in speed by total time. _________________________

____          10.       When the forces acting on an object are unbalanced, the net force is zero. _________________________

____          11.       An object in motion at a constant velocity will change its motion only if a balanced force acts on it. _________________________

____          12.       In a car crash, inertia could cause you to crash into the windshield. _________________________

Multiple Choice
Identify the choice that best completes the statement or answers the question.

____          13.       If you ride your bicycle down a straight road for 500 m then turn around and ride back, your distance is ____ your displacement.
 a. greater than c. less than b. equal to d. can’t determine

____          14.       Motion is a change in ____.
 a. time c. velocity b. speed d. position

____          15.       The speed you read on a speedometer is ____.
 a. instantaneous speed c. average speed b. constant speed d. velocity

____          16.       3 m/s north is an example of a(n) ____.
 a. speed c. position b. velocity d. acceleration

____          17.       The relationship among speed, distance, and time is ____.
 a. t = s/d c. s = dt b. d = t/s d. s = d/t

____          18.       A single point on a distance-time graph tells the ____.
 a. instantaneous speed c. constant speed b. average speed d. average velocity

____          19.       A merry-go-round horse moves at a constant speed but at a changing ____.
 a. velocity c. inertia b. balanced force d. unbalanced force

____          20.       Acceleration is rate of change of ____.
 a. position c. velocity b. time d. force

____          21.       If you ride your bike up a hill, then ride down the other side, your acceleration is ____.
 a. all positive c. first positive, then negative b. all negative d. first negative, then positive

____          22.       The equation used to find acceleration is a = ____.
 a. vf – vi/t c. vi – vf /t b. v/t d. vi + vf/t

____          23.       A horizontal line on a velocity/time graph shows ____ acceleration.
 a. positive c. changing b. negative d. zero

____          24.       Inertia varies depending on ____.
 a. force c. velocity b. mass d. motion

____          25.       Newton's first law of motion is also called the law of ____.
 a. mass c. force b. inertia d. constant velocity

Completion
Complete each statement.

26.       ____________________ is a measure of how far an object has moved.

27.       The speed and direction with which an object moves is its ____________________.

28.       The distance an object travels per unit of time is ____________________.

29.       The slope of the distance-time graph gives the ____________________.

30.       Acceleration occurs when an object changes its ____________________ or ____________________ or both.

31.       An object changing its speed from 10 m/s to 3 m/s is undergoing ____________________ acceleration.

32.       As a car slows down approaching a red traffic light, its ____________________ is negative.

33.       When calculating acceleration, to find the change in velocity, you subtract the ____________________ velocity from the ____________________ velocity.

34.       If the forces acting on an object at rest are ____________________, the object will remain at rest.

35.       At the same speed, a bowling ball is harder to stop than a soccer ball because the bowling ball has greater ____________________.

36.       In the equation a = (Vf  – Vi)/t, Vf stands for _________________________.

Physical Science Chapter 3 Exam

MODIFIED TRUE/FALSE

1.                   ANS:  T                                                     PTS:   1          DIF:     Webb's Depth of Knowledge I
OBJ:                   1/1      STA:              PS1.1 CS2.1

2.                   ANS:  F, position

PTS:                    1         DIF:               Webb's Depth of Knowledge I       OBJ:    1/1
STA:                   PS1.2 CS2.1

3.                   ANS:  F, velocity

PTS:                    1         DIF:               Webb's Depth of Knowledge I       OBJ:    2/1
STA:                   PS1.2 CS2.1

4.                   ANS:  F, total travel time

PTS:                    1         DIF:               Webb's Depth of Knowledge I       OBJ:    2/1
STA:                   PS1.1 CS1.1

5.                   ANS:  T                                                     PTS:   1          DIF:     Webb's Depth of Knowledge I
OBJ:                   2/1      STA:              PS1.1 CS2.1

6.                   ANS:  T                                                     PTS:   1          DIF:     Webb's Depth of Knowledge I
OBJ:                   4/2      STA:              PS1.1 CS2.1

7.                   ANS:  F, negative

PTS:                    1         DIF:               Webb's Depth of Knowledge I       OBJ:    5/2
STA:                   PS1.1 CS2.1

8.                   ANS:  F, positive

PTS:                    1         DIF:               Webb's Depth of Knowledge I       OBJ:    5/2
STA:                   PS1.1 CS2.1

9.                   ANS:  F, velocity

PTS:                    1         DIF:               Webb's Depth of Knowledge I       OBJ:    6/2
STA:                   PS1.1 CS2.1

10.                 ANS:  F, balanced

PTS:                    1         DIF:               Webb's Depth of Knowledge I       OBJ:    8/3
STA:                   PS1.1 CS2.1

11.                 ANS:  F, an unbalanced

PTS:                    1         DIF:               Webb's Depth of Knowledge I       OBJ:    7/3
STA:                   PS1.1 CS2.1

12.                 ANS:  T                                                     PTS:   1          DIF:     Webb's Depth of Knowledge I
OBJ:                   9/3      STA:              PS1.1 CS2.1

MULTIPLE CHOICE

13.                 ANS:  A                   PTS:   1                    DIF:    Webb's Depth of Knowledge I
OBJ:                   1/1      STA:              PS1.1 CS2.1

14.                 ANS:  D                   PTS:   1                    DIF:    Webb's Depth of Knowledge I
OBJ:                   1/1      STA:              PS1.1 CS2.1

15.                 ANS:  A                   PTS:   1                    DIF:    Webb's Depth of Knowledge I
OBJ:                   2/1      STA:              PS1.1 CS2.1

16.                 ANS:  B                    PTS:   1                    DIF:    Webb's Depth of Knowledge I
OBJ:                   2/1      STA:              PS1.1 CS2.1

17.                 ANS:  D                   PTS:   1                    DIF:    Webb's Depth of Knowledge I
OBJ:                   2/1      STA:              PS1.1 CS2.1

18.                 ANS:  A                   PTS:   1                    DIF:    Webb's Depth of Knowledge I
OBJ:                   3/1      STA:              PS1.1 CS2.1

19.                 ANS:  A                   PTS:   1                    DIF:    Webb's Depth of Knowledge I
OBJ:                   2/1      STA:              PS1.1 CS2.1

20.                 ANS:  C                    PTS:   1                    DIF:    Webb's Depth of Knowledge I
OBJ:                   4/2      STA:              PS1.1 CS2.1

21.                 ANS:  D                   PTS:   1                    DIF:    Webb's Depth of Knowledge I
OBJ:                   5/2      STA:              PS1.1 CS2.1

22.                 ANS:  A                   PTS:   1                    DIF:    Webb's Depth of Knowledge II
OBJ:                   6/2      STA:              PS4.3 CS2.1

23.                 ANS:  D                   PTS:   1                    DIF:    Webb's Depth of Knowledge I
OBJ:                   6/2      STA:              PS1.1 CS2.1

24.                 ANS:  B                    PTS:   1                    DIF:    Webb's Depth of Knowledge I
OBJ:                   8/3      STA:              PS1.1 CS2.1

25.                 ANS:  B                    PTS:   1                    DIF:    Webb's Depth of Knowledge I
OBJ:                   8/3      STA:              PS1.1 CS2.1

COMPLETION

26.                 ANS:  Distance

PTS:                    1         DIF:               Webb's Depth of Knowledge I       OBJ:    1/1
STA:                   PS1.1 CS2.1

27.                 ANS:  velocity

PTS:                    1         DIF:               Webb's Depth of Knowledge I       OBJ:    2/1
STA:                   PS1.1 CS2.1

28.                 ANS:  speed

PTS:                    1         DIF:               Webb's Depth of Knowledge I       OBJ:    2/1
STA:                   PS1.1 CS2.1

29.                 ANS:  speed

PTS:                    1         DIF:               Webb's Depth of Knowledge I       OBJ:    3/1
STA:                   PS1.1 CS2.1

30.                 ANS:  speed, direction

PTS:                    1         DIF:               Webb's Depth of Knowledge I       OBJ:    4/2
STA:                   PS1.1 CS2.1

31.                 ANS:  negative

PTS:                    1         DIF:               Webb's Depth of Knowledge II      OBJ:    6/2
STA:                   PS1.1 CS2.1

32.                 ANS:  acceleration

PTS:                    1         DIF:               Webb's Depth of Knowledge I       OBJ:    5/2
STA:                   PS1.1 CS2.1

33.                 ANS:  initial, final

PTS:                    1         DIF:               Webb's Depth of Knowledge II      OBJ:    6/2
STA:                   PS1.1 CS2.1

34.                 ANS:  balanced

PTS:                    1         DIF:               Webb's Depth of Knowledge I       OBJ:    8/3
STA:                   PS1.1 CS2.1

35.                 ANS:
inertia
mass

PTS:                    1         DIF:               Webb's Depth of Knowledge II      OBJ:    8/3
STA:                   PS1.1 CS2.1

36.                 ANS:  final velocity

PTS:                    1         DIF:               Webb's Depth of Knowledge I       OBJ:    2/1
STA:                   PS1.1 CS2.1