Speed and Acceleration Worksheet
Speed and Acceleration
Part 1: Concepts
1. Does the speedometer of a car read average speed or instantaneous speed? ____________
How do you know?
2. If the speedometer of your car reads a constant speed of 40km/hr, can you say the car has a constant velocity? ________ Explain your answer.
3. What two controls on a car cause a change in speed? _________________________ _________________________
What control causes a change in velocity? _________________________
4. What is the acceleration of a car that travels in a straight line at a constant speed? _________
5. Describe a situation in which you can accelerate even though your speed doesn’t change.
Part 2: Calculations
FORMULAS: s=d/t d=s.t t = d/s A= Vf – Vi/ t
6. What is the speed of a rocket that travels 9000 meters in 12.12 seconds?
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7. What is the speed of a jet plane that travels 528 meters in 4 seconds?
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8. How long will your trip take (in hours) if you travel 350 km at an average speed of 80 km/hr?
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9. What is the speed of a walking person in m/s if the person travels 1000 m in 20 minutes? (Hint: change minutes to seconds)
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10. How far (in meters) will you travel in 3 minutes (Hint: change minutes to seconds) running at a rate of 6 m/s?
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11. A meteoroid changed velocity from 1.0 km/s to 1.8 km/s in 0.03 seconds. What is the acceleration of the meteoroid?
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12. A runner covers the last straight stretch of a race in 4 s. During that time, he speeds up from 5 m/s to 9 m/s. What is the runner’s acceleration in this part of the race?
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Name __________________________
Per ___________
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