Tennessee Science Grade 7

Section 1: Motion

Self-Check Quiz - English

1
__________ is dependent upon the direction of travel and the distance between the final position and the starting position.
A)Displacement
B)Acceleration
C)Velocity
D)Differential
2
__________ is the distance traveled divided by the time needed to travel that distance.
A)Velocity
B)Acceleration
C)Displacement
D)Speed
3
__________ is the speed of an object at any instant of time.
A)Average speed
B)Velocity
C)Acceleration
D)Instantaneous speed
4
A bicycle rider travels 15 km in 1.25 hours. What is the rider's average speed?
A)22.5 km/h
B)12 km/h
C)13.75 km/h
D)10.5 km/h
5
If a runner maintains a constant speed of 12 km/h, how long will it take him 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
6
__________ is displacement divided by the time.
A)Speed
B)Velocity
C)Acceleration
D)Position
7
__________ is the change in velocity divided by the time needed for the change to occur.
A)Average velocity
B)Speed
C)Displacement
D)Acceleration
8
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/s 2
B)- 0.15 m/s 2
C)-0.56 m/s 2
D)0.56 m/s 2
9
A track runner begins running from the starting line and reaches a race pace of 4 min per mile in 5 s. What is the runner's acceleration?
A)1.33 m/s2
B)6.67 m/s2
C)0.05 m/s2
D)0.001 m/s2
10
Which of the following statements is true?
A)An object does not accelerate if it turns and maintains constant speed.
B)If a moving object slows, it is accelerating.
C)Velocity of a moving object is the distance traveled divided by the time needed to travel the distance.
D)When speed increases gradually, average speed and instantaneous speed are the same.
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