Lab: Motion — Unit test Answers

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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.
23
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If velocity is positive, which would most likely yield a negative acceleration?

A
A final velocity that is faster than an initial velocity.
B
A time that is less than a half hour.
C
An initial velocity that is faster than a final velocity.
D
A time that is greater than a half hour.
24

Julie finds a snail on the sidewalk and wants to know whether or not the snail moves throughout the day. She places a single mark on the sidewalk next to the snail.What will Julie use the mark for initially?

A
determining how fast the snail moves
B
acting as a standard unit of measure
C
determining the displacement of the snail
D
acting as a reference point for detecting motion
25

A linear track begins at 0 meters and has a total distance of 100 meters to the finish line. Juliet starts at the 10-meter mark while practicing for a race.After running 45 meters, how far is she from the beginning of the track?

A
10 meters
B
35 meters
C
45 meters
D
55 meters

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Lab: Motion — Unit test Answers — AA-F26…