Glencoe Science Level Red

Chapter 5: Motion, Forces, and Simple Machines

Section 1 Self-Check Quiz-Eng.

1
Average speed is found by __________.
A)dividing the displacement by the time spent
B)dividing total distance traveled by the travel time
C)multiplying total distance traveled by the total time
D)multiplying the displacement by the time spent
2
__________ is the speed of an object at any instant of time.
A)Average speed
B)Velocity
C)Instantaneous speed
D)Acceleration
3
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
4
If a student leaves home at 7:30 A.M. to walk to his school 2 km away, stops at a neighbor's house for 15 minutes, then arrives at school at 8:00 A.M., what is the student's average speed for the trip to school?
A)4 km/h
B)2 km/h
C)2.67 km/h
D)8 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)5.3 h
D)3.52 h
6
The direction and speed of an object is described by its __________.
A)velocity
B)displacement
C)average speed
D)average displacement
7
_________ is the change in velocity divided by the time needed for the change to occur.
A)Acceleration
B)Average velocity
C)Speed
D)Displacement
8
Which of the following is NOT an acceleration?
A)riding your bike straight down the street at a constant speed
B)stopping your bike at an intersection
C)slowing your bike ride so you can make it up a hill
D)riding your bike faster when you head down a hill
9
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)- 0.15 m/s2
C)- 0.56 m/s2
D)0.56 m/s2
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