AnswersCrowley Credit Recovery Physics AAcceleration

Lesson 2: Acceleration Answers

19 verified answers
1
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Study the motion map shown. Some of the vectors have been circled.What do the circled vectors represent?

Question illustration
A
distance
B
speed
C
velocity
D
acceleration
2
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For motion maps that illustrate accelerated motion, what does a new level indicate?

A
change in acceleration or direction
B
constant acceleration and direction
C
increased velocity
D
decreased velocity
3

A truck heading east has an initial velocity of 6 m/s. It accelerates at 2 m/s2 for 12 seconds. What distance does the truck travel in the given time?

A
84 m
B
144 m
C
216 m
D
360 m
4

A motion map for a motorcycle is shown.

Question illustration
A
1
B
2
C
3
D
4
5

How is constant velocity indicated on a motion map?

A
by vectors that slowly increase in length
B
by vectors that are all the same length
C
by dots that slowly increase in size
D
by dots that are all the same length
6

Study the velocity vs. time graph shown.

Question illustration
4
4 m
8
8 m
1
16 m
2
24 m
7

Which formula is used to find an object’s acceleration?

A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
8

A velocity vs. time graph is shown.

Question illustration
A
0 m/s2
B
0.25 m/s2
C
4 m/s2
D
8 m/s2
9

The chart shows data for four moving objects.Which object has the greatest acceleration?

Question illustration
A
W
B
X
C
Y
D
Z
10

The chart shows data for a moving object.

Question illustration
A
The object has negative displacement.
B
The object has negative acceleration.
C
The object does not have displacement.
D
The object is not accelerating.
11

For motion maps that illustrate accelerated motion, what does a new level indicate?

c
change in acceleration or direction
c
constant acceleration and direction
i
increased velocity
d
decreased velocity
12

A truck heading east has an initial velocity of 6 m/s. It accelerates at 2 m/s2 for 12 seconds. What distance does the truck travel in the given time?

8
84 m
1
144 m
2
216 m
3
360 m
13

The diagram shows a motion map.

Question illustration
A
The object has decreasing acceleration and increasing velocity.
B
The object has positive acceleration and eventually stops.
C
The object has decreasing acceleration and decreasing velocity.
D
The object has negative acceleration and eventually stops.
14

Study the motion map shown. Some of the vectors have been circled.What do the circled vectors represent?

Question illustration
d
distance
s
speed
v
velocity
a
acceleration
15

A train moving west with an initial velocity of 20 m/s accelerates at 4 m/s2 for 10 seconds. During this time, the train moves a distance of meters.

Answer:

400

16

The of the line on a velocity vs. time graph represents acceleration.

Answer:

slope

17

The chart shows data for a moving object.

Question illustration
A
The object has negative displacement.
B
The object has negative acceleration.
C
The object does not have displacement.
D
The object is not accelerating.
18

Which characteristic does an object with a constant acceleration always have?

c
changing velocity
c
constant velocity
f
fast speed
s
slow speed
19

How is constant velocity indicated on a motion map?

b
by vectors that slowly increase in length
b
by vectors that are all the same length
b
by dots that slowly increase in size
b
by dots that are all the same length

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