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# Motion Calculations (Grade 8)

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## Motion Calculations

1.
What is the speed of a car that travels 200 meters in 25 seconds?
1. 5000 m/s
2. 8 m/s
3. 0.8 m/s
4. 0.125 m/s

2.
What is the momentum of a 30 gram ball whose velocity is 5 m/s south?
1. 150 g-m/s south
2. 6 g-m/s south
3. 1.6 g-m/s south
4. 300 g-m/s south
3.
A bicycle accelerates from rest to 7 m/s in 14 seconds, how much is the bicycle's acceleration?
1. 98 m/s/s
2. 2 m/s/s
3. 0.5 m/s/s
4. 1.5 m/s/s

4.
What is the momentum of a 57 kg cheetah running north at 27 m/s?
1. 1,539 kg-m/s north
2. 999 kg-m/s north
3. 2.1 kg-m/s north
4. 0.47 kg-m/s north
5.
A car accelerates from 15 m/s to 30 m/s in 3.0 s. What is the car's acceleration?
1. 10 m/s/s
2. 25 m/s/s
3. 15 m/s/s
4. 5.0 m/s/s

6.
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
7.
You travel to a city 200 km away in 2.5 hours. What is your average speed in km/hr?
1. 180 km/hr
2. 12.5 km/hr
3. 80 km/hr
4. 0.0125 km/hr

8.
Write the equation and solve (use correct units):
Calculate the speed of a swimmer who swims 150 meters in 88 seconds.

9.
Write the formula (Use the correct units)
What is the momentum of a 16-kg bicycle traveling north at 3 m/s?

10.
Write the equation (use the correct units)
Find the acceleration of an automobile whose speed increases from 10 m/s to 22 m/s in 8 seconds.

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