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- 1. Multiple Choice
A passenger in the rear seat of a car moving at a steady speed is at rest relative to
the side of the road
the wheels of the car
a pedestrian on the corner ahead
the front seat of the car
- 2. Multiple Choice
A person walks 3 miles every day for exercise, leaving her front porch at 9:00 am. and returning to her front porch at 9:25 am. What is the total displacement of her daily walk?
3 miles
0
25 minutes
none of the above
- 3. Multiple Choice
Displacement vectors of 5 km south, 2 km north, 4 km south, and 5 km north combine to a total displacement of
16 km north
11 km west
6 km south
2 km south
- 4. Multiple Choice
What is the most appropriate SI unit to express the speed of a cyclist in the last leg of a 10-km race?
km/s
km/h
mm/s
cm/h
- 5. Multiple Choice
Speed is the ratio of the distance an object moves to
the amount of time needed to travel the distance.
the direction the object moves.
the displacement of the object.
the motion of the object.
- 6. Multiple Choice
Instantaneous speed is measured
at the starting point.
when the object reaches its destination.
at a particular instant.
over the duration of the trip.
- 7. Multiple Choice
A car traveled 60 km in 2 hours, 84 km in the next 1 hour, and then 68 km in 3 hours before reaching its destination. What was the car’s average speed?
42 km/h
35 km/h
30 km/h
22 km/h
- 8. Multiple Choice
The slope of a line on a distance-time graph is
distance.
time.
speed.
displacement
- 9. Multiple Choice
A horizontal line on a distance-time graph means the object is
moving at a constant speed.
moving faster.
slowing down.
at rest.
- 10. Multiple Choice
What is the speed of a bobsled whose distance-time graph indicates that it traveled 100 m in 20 s?
5 m/s
2000 m/s
0.2 m/s
100 m/s
- 11. Multiple Choice
A distance-time graph indicates that an object moves 70 m in 4 s and then remains at rest for 6 s. What is the average speed of the object?
35 m/s
17.5 m/s
7 m/s
70 m/s
- 12. Multiple Choice
The rate at which velocity changes is called
speed.
vectors.
acceleration.
motion.
- 13. Multiple Choice
Which example identifies a change in motion that produces acceleration?
a speed skater moving at a constant speed on a straight track
a ball moving at a constant speed around a circular track
a particle moving in a vacuum at constant velocity
a vehicle moving down the street at a steady speed
- 14. Multiple Choice
Objects in free fall near the surface of the Earth experience
constant speed.
constant velocity.
constant acceleration.
constant distance.
- 15. Multiple Choice
Suppose you increase your walking speed from 1 m/s to 5 m/s in a period of 1 s. What is your acceleration?
4 m/s2
5 m/s2
6 m/s2
3 m/s2
- 16. Multiple Choice
An object moving at 20 m/s takes 5 s to come to a stop. What is the object’s acceleration?
20 m/s2
-20 m/s2
-4 m/s2
4 m/s2
- 17. Multiple Choice
The slope of a speed-time graph indicates
direction.
acceleration.
velocity.
speed.
- 18. Multiple Choice
A car approaching a stop sign speed from 25 m/s to 10 m/s in 240 s. How can the car’s acceleration be described?
The car’s acceleration is positive.
The car’s is not accelerating.
The car’s will come to rest in 6 minutes.
The car’s acceleration is negative.
- 19. Multiple Choice
The SI for measuring distance is the _____________.
meter
gram
foot
m/s
- 20. Multiple Choice
The direction and length of a straight line from the starting point to the ending point of an object's motion is ________.
velocity
meter
distance
displacement
- 21. Multiple Choice
Displacement and velocity are examples of ______ because they have both magnitude and direction
scalars
vectors
speed
qualities
- 22. Multiple Choice
The sum of two or more vectors is called the _______.
displacement
distance
resultant vector
acceleration
- 23. Multiple Choice
Speed is measured in _____.
m/s
m/s2
m
s
- 24. Multiple Choice
A car's speedometer measure _____.
acceleration
average time
average speed
instantaneous speed
- 25. Multiple Choice
The difference between speed and velocity is that velocity indicates the ________ of motion and speed does not.
gravity
direction
acceleration
time
- 26. Multiple Choice
A moving object does not ____ if its velocity remains constant.
stay at rest
move
speed
accelerate
- 27. Multiple Choice
Freely falling objects accelerate at 9.8 m/s2 because the force of _____ acts on them.
evil
gravity
newton
direction
- 28. Multiple Choice
At what point(s) on the Distance-Time graph is th object stopped?
B and D
A and C
Just C
Just D
- 29. Multiple Choice
At what point on the Distance-Time Graph is the object going the fastest?
A
B
C
D
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