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# Speed, Velocity, and Acceleration (Grade 8)

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## Speed, Velocity, and Acceleration

1.
Average speed equals
1. Distance/Time.
2. Time/Distance.
3. Distance + Time.

2.
Velocity is the measure of
1. time and distance.
2. space and time.
3. speed that is constant.
4. speed in a certain direction.
3.
What information is required in order to measure speed?
1. time and distance
2. velocity and time
3. distance and velocity
4. momentum and time

4.
This describes how far an object moves during a certain amount of time.
1. velocity
2. magnitude
3. average speed
5.
Acceleration refers to                   .
1. increasing speed
2. decreasing speed
3. changing direction
4. all of the above

6.
An object will not change its velocity if a force acts upon it.
1. True
2. False
7.
What does a car's speedometer measure?
1. Speed
2. Velocity
3. Both

8.
The slope of a distance-time graph correlates to
1. acceleration.
2. time.
3. distance.
4. velocity.
9.
Calculate the average speed of a bicycle that travels 100 m in 20 s.

10.
If you speed up from rest to 12 m/s in 3 seconds, what is your acceleration?
1. 4 m
2. 4 m/s/s
3. 36 m
4. 36 m/s
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