PHYS 101 Quiz Study of Motion

PHYS 101 Quiz: The Study of Motion

1. In expressions like Δv and Δt, Δ stands for
2. A racecar driver steps on the gas, and his racecar travels 20 meters in 2 seconds starting from rest. The acceleration of the racecar is
3. What is the proper abbreviation for ‘kilohertz?’
4. Instantaneous speed and average speed are equal
5. What is the proper abbreviation for ‘grams?’
6. A ball is dropped from a rooftop of a building and falls for two seconds. The acceleration of gravity is 9.8 m/s2. The ball is referred to at the two-second time.
7. A racecar driver steps on the gas, changing his speed from 10 m/s to 30 m/s in 4 seconds. The acceleration of the racecar is
8. A body at the end of a spring oscillates up and down ten times in five seconds. The period of oscillation is
9. The slope of a distance vs. time graph is the
10. The acceleration of a ball as it rolls down a ramp is 4 m/s2. The ball is referred to 2 s after it starts to roll.
11. The figure shows a distance vs. time graph of an object with three distinct regions, I, II, and III. The object’s velocity is negative in region(s)
12. The figure shows a distance vs. time graph of an object with three distinct regions, I, II, and III.
13. Twenty milliseconds is
14. How many megabytes are there in a gigabyte?
15. The slope of a velocity vs. time graph is the
16. A racecar driver steps on the gas, changing his speed from 10 m/s to 30 m/s in 4 seconds. The acceleration of the racecar is 10 m/s2.
17. Twenty milliseconds is 0.020 s.
18. A body at the end of a spring oscillates up and down ten times in five seconds. The period of oscillation is 2 s.
19. The figure shows the distance versus time graph of an object. The acceleration of the moving object is a non-zero constant.
20. The slope of a distance vs. time graph is the acceleration.
21. The acceleration of a ball as it rolls down a ramp is 4 m/s2. The ball is referred to 2 s after it starts to roll.
22. The figure shows a distance vs. time graph of an object with three distinct regions, I, II, and III. The object is never at rest.
23. A fast-moving body must have a larger acceleration than a slow-moving body.
24. If an object’s speed is constant, its velocity must also be constant.
25. The proper abbreviation for ‘kilohertz’ is ‘kHz.’
26. Select the closest matching pairs possible. 3 pts for each response.