AnswersWA-Physical Science BSpeed and Velocity

Speed and Velocity Answers

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1
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Which units are used to measure both velocity and speed? Select three options.

A
m/s
B
d/t
C
km/h
D
mph
E
m2
2
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Which explains the information needed to calculate speed and velocity?

A
Both require the total distance, but velocity also requires time and displacement.
B
Both require time, but velocity requires displacement and speed requires distance.
C
Speed requires displacement, while velocity requires distance.
D
Speed does not require time, while velocity does require time.
3

The chart shows Daniela’s run through her race.

Question illustration
A
1.5 m/s
B
2 m/s
C
2.5 m/s
D
5 m/s
4

Veronica’s velocity was measured as 4.3 m/s. She displaced 20 meters in 4.7 seconds. Which piece of information is missing for the correct calculation of velocity?

A
the starting point
B
the direction
C
the end point
D
the time per meter
5

The graph indicates the running route for Tobias.Which best describes his run?

Question illustration
A
From time 0 to 6, he went fast and then slowed down.
B
From time 6 to 10, he was at his slowest.
C
From time 12 to 14, he went very slow.
D
From time 14 to 18, he went toward the starting point.
6

Which statement can be supported by using a position-time graph?

A
A negative slope results when an individual is moving away from the origin.
B
A horizontal line on the graph means the individual is moving at a non-zero velocity.
C
A positive slope results when an individual is moving away from the origin.
D
The speed of an individual cannot be determined from this type of graph.
7

Which best defines the relationship between speed and velocity?

A
Speed is velocity with displacement.
B
Velocity is speed with displacement.
C
Speed is based on a specific direction.
D
Velocity is based on distance.
8

Greg is in a bike race. At mile marker four (out of ten), his speed was measured at 13.5 mph.Which best describes the measured number?

A
It is the average speed of the bike rider.
B
It is the instantaneous speed of the bike rider.
C
It is the instantaneous velocity of the bike rider.
D
It is the average velocity of the bike rider.
9

The chart indicates the time, speed, and velocity of five runners.

Question illustration
A
Garreth and Elisa ran the same distance but not the same displacement, Luigi and Jasmine went the same displacement, and Logan ran faster than Jasmine.
B
Garreth ran farther than Luigi, Elisa and Jasmine went the same distance, and Logan and Jasmine has the same displacement in the opposite direction.
C
Garreth and Elisa ran together, Luigi and Jasmine went the same distance, and Logan and Jasmine have the same displacement in the opposite direction.
D
Garreth ran less than Logan, Elisa and Jasmine went the same displacement, and Luigi and Garreth ran together.
10

Mr. Smith is designing a race where velocity will be measured. Which course would allow velocity to accurately get a winner?

A
a 5 mile course from the center of town heading north to the outskirts of town
B
a 100 meter swim in a 50 meter pool
C
a 2 mile run around a 400 meter track
D
a 10 mile bike course that zigzags through the mountains and back again

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