7 Questions

Questions and Answers

- 1.What can be calculated by finding the area under an acceleration vs. time graph for a specific amount of time?
- A.
Displacement

- B.
Position

- C.
Velocity

- D.
None of these

- 2.What is represented by the slope of a position vs. time graph?
- A.
Acceleration

- B.
Position

- C.
Distance

- D.
Velocity

- 3.When the slope of a velocity vs. time graph is zero, which of the following is true?
- A.
The velocity is unchanging.

- B.
The object is standing still

- C.
There must be acceleration

- D.
All of these

- 4.Adam is driving 70 km/hr west and passes Dana who is also traveling west, but at a rate of 55 km/hr. From Dana's perspective, how fast does it appear that Adam is moving?
- A.
+25 km/hr

- B.
-15 km/hr

- C.
+15 km/hr

- D.
125 km/hr

- 5.A car accelerates from rest at a rate of 2.3 m/s
^{2}for 25 seconds. What is the final velocity of this car?- A.
28.3 m/s

- B.
57.5 m/s

- C.
10.87 m/s

- D.
12.01 m/s

- 6.A car accelerates from rest at a rate of 2.3 m/s
^{2}for 25 seconds. What distance is covered by the car during this time?- A.
718.75 m

- B.
57.50 m

- C.
10.87 m

- D.
212.01 m

- 7.What is the average acceleration for a train that accelerates from 20 m/s to 27.2 m/s in 3 seconds? _____________
- A.
2.5

- B.
3.2

- C.
2.0

- D.
2.72