Glencoe Physical Science

Chapter 2: Motion

Self-Check Quiz.-Eng.

1
__________ is the change in velocity divided by the time needed for the change to occur.
A)Acceleration
B)Average velocity
C)Speed
D)Displacement
2
If a car is traveling 100 km/h and comes to a stop in 3 min, what is the car's acceleration?
A)0.15 m/s2
B)- 0.56 m/s2
C)0.56 m/s2
D)- 0.15 m/s2
3
If a runner maintains a constant speed of 12 km/h, how long will it take to complete a marathon race of 26.2 miles?
A)2.18 h
B)3.14 h
C)3.52 h
D)5.3 h
4
If the line on a speed-time graph slopes downward to the right, then acceleration is _______.
A)positive
B)negative
C)static
D)to the right
5
If an airplane is accelerating so that its speed is increasing what does the plotted line on a speed-time graph look like?
A)it slopes downward to the right
B)it slopes upward to the right
C)it slopes upward to the left
D)it slopes downward to the left
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