AnswersWA-Physical Science BSpeed and Velocity

Acceleration Answers

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1
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Which equation is most likely used to determine the acceleration from a velocity vs. time graph?

A
a =
Option A
B
m =
Option B
C
a =
Option C
D
m =
Option D
2
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The graph represents velocity over time.

Question illustration
A
–0.4 m/s2
B
–0.2 m/s2
C
0.2 m/s2
D
0.4 m/s2
3

Beverly and Carl are in a race. Their graphs show the data.

Question illustration
A
Even though for a majority of the race they accelerated at the same rate, Carl won because his initial acceleration was greater than Beverly’s.
B
Even though for a majority of the race they accelerated at the same rate, Beverly won because her initial acceleration was greater than Carl’s.
C
Beverly accelerated at a greater rate for the entire race.
D
Carl accelerated at a greater rate for the entire race.
4

Which velocity vs. time graph corresponds to the data represented by the position vs. time graph?

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
5

best

Question illustration
G
Gabriella is speeding up at the same rate that Kendall is slowing down, and Franklin is not accelerating.
G
Gabriella is slowing down at the same rate that Kendall is speeding up, and Franklin is not accelerating.
G
Gabriella and Franklin are both slowing down, and Kendall is accelerating.
G
Gabriella is slowing down, and Kendall and Franklin are accelerating.
6

The graph depicts the velocity and times of Elan and Anna during a race.

Question illustration
F
From 0 to 2 seconds, Anna experienced negative acceleration.
F
From 3 to 6 seconds, Elan accelerated while Anna did not.
F
From 6 to 8 seconds, Elan accelerated faster than Anna.
F
From 8 to 10 seconds, Elan experienced negative acceleration.
7

Which refers to the rate of change in velocity?

A
speed
B
acceleration
C
direction
D
magnitude
8

Which graph shows a negative acceleration?

A
A graph with horizontal axis time (seconds) and vertical axis position (meters). A straight line runs from 0 seconds 0 meters upward.
Option A
B
A graph with horizontal axis time (seconds) and vertical axis position (meters). A concave line runs from 0 seconds 0 meters upward.
Option B
C
A graph with horizontal axis time (seconds) and vertical axis position (meters). A straight line runs from 0 seconds some positive number meters upward downward to some positive number of seconds 0 meters.
Option C
D
Option
Option D
9

greatest

Question illustration
D
Dustin → Diego → Kira
D
Dustin → Kira → Diego
K
Kira → Dustin → Diego
K
Kira → Diego → Dustin
10

A car is traveling in a race. The car went from the initial velocity of 35 m/s to the final velocity of 65 m/s in 5 seconds. What is the acceleration?

A
–13 m/s2
B
–6 m/s2
C
6 m/s2
D
13 m/s2

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