Chapter 9 Speed and Motion Test B
Multiple Choice
Identify the choice that best completes the statement or answers the question.
1. If the Spirit of Australia, a boat, reaches speeds of 318.67 mph for 0.75 hours (45
minutes), what is the distance it traveled?
a. 14340.2 mi b. 424.9 mi c. 239 mi d. none are
correct
2. A boat is traveling at a speed of 36 km/h. It has to travel a distance of 210 km.
How long will it take?
a. 5.83 hr b. 7560 hr c. 0.17 hr d. none are correct
3. A plane passes over Point A with a velocity of 8000 m/s north. Forty seconds later
it passes over Point B at a velocity of 10,000 m/s north. What is the planes’
acceleration from A to B?
a. – 50 m/s/s north b. -200 m/s/s north c. 50 m/s/s north d. 200 m/s/s
north
4. A dog can run as fast as 15 miles per hour for a short distance. If a dog ran at this
speed for 6 minutes, or 0.10 of an hour, how far would it run?
a. 90 miles b. 2.5 miles c. 150 miles d. 1.5 miles
5. A runner achieves a velocity of 11.1 m/s nine seconds after he begins, what
is the runner’s acceleration?
a. 99.9 m/s/s b. 1.23 m/s/s c. – 9.8 m/s/s d. none are correct
6. A place or object used for comparison to determine if something is in motion is called
a. a position.
b. a reference point.
c. a constant.
d. velocity.
7. Time equals distance divided by
a. time.
b. speed
c. size.
d. motion.
8. When you know both the speed and direction of an object’s motion, you know the
a. average speed of the object.
b. acceleration of the object.
c. distance the object has traveled.
d. velocity of the object.
9. Average speed is
a. equivalent to velocity.
b. the rate at which an object is moving at a given instant.
c. the rate at which a slope changes.
d. the total distance traveled divided by the total time.
10.If you know the distance an object has traveled in a certain amount of time, you can determine
a. the size of the object.
b. the speed of the object.
c. the location of the object.
d. the acceleration of the object.
11.If the speed of an object does NOT change, the object is traveling at a
a. constant speed.
b. average speed.
c. increasing speed.
d. decreasing speed.
12.If a bicyclist travels at 15 km/h, how long will it take her to travel 30 km?
a. 450 h
b. 6 h
c. 0.5 h
d. 2 h
13.If an object moves in the same direction and at a constant speed for 7 hours, which of the
following is true?
a. The object’s speed changed during the 7 hours.
b. The object’s velocity did not change.
c. The object accelerated during the 7 hours.
d. The object decelerated during the 7 hours.
14.If you know a car traveled 300 kilometers in 3 hours, you can find its
a. average speed.
b. direction.
c. velocity
d. acceleration..
15.A car travels 85 km in the first half hour of a trip. The car continues to travel for 2 more hours
and travels 200 km. What was the average speed of the car for the trip?
a. 39 km/h
b. 95 km/h
c. 114 km/h
d. 285 km/h
16.The rate at which velocity changes is called
a. instantaneous speed.
b. direction.
c. motion.
d. acceleration.
17.Which of these is an example of deceleration?
a. a car approaching a red light
b. a roller coaster moving down a steep hill
c. an airplane following a straight flight path
d. a bird taking off for flight
18.To determine the acceleration rate of an object, you must calculate the change in speed during
each unit of
a. velocity.
b. time.
c. motion.
d. deceleration.
19.If speed is measured in meters per second and time is measured in second, the unit of
acceleration is
a. second
b. meters.
c. meters per second.
d. meters per second per second.
20.Which of the following is the correct equation for acceleration?
a.
b.
c.
d.
21.What kind of line on a distance-versus-time graph indicates that the object is accelerating?
a. curved b. horizontal c. diagonal d. vertical
22.The energy associated with motion is called
a. kinetic energy.
b. elastic potential energy.
c. gravitational potential energy.
d. nuclear energy.
23.Which of the following has kinetic energy?
a. a car driving down hill
b. a car waiting at a red light
c. a rock poised for a fall
d. an archer’s bow that is drawn back
24.Unlike kinetic energy, potential energy is
a. energy of motion.
b. stored.
c. conserved.
d. not measurable.
25.Potential energy that depends on height is called
a. kinetic energy.
b. mechanical energy.
c. elastic potential energy.
d. gravitational potential energy
26.In a graph of distance versus time, the slope represents
a. speed.
b. displacement.
c. acceleration.
d. potential energy.
27.The rise of a line on a distance-versus-time graph is 400 km and the run is 50 hours. What is
the speed of the object represented by this graph?
a. 2000 km/h
b. 450 km/h
c. 350 km/h
d. 8 km/h
True/False- Indicate whether the statement is true by marking A or false by marking B.
28. Motion is measured relative to a reference point.
29. A meter is a place or object used for comparison to determine if something is in motion.
30. The SI unit of velocity is the meter per second per second (m/s/s).
31. A compressed spring has gravitational potential energy.
32, 33, 34, 35, and 36. Label the diagram of a swinging pendulum, show where there is potential
and kinetic energy. Mark “A” for potential energy, “B” for kinetic, “C” for both
potential and kinetic, or “D” for neither
32
36
33
34 35
Describe how the woman and her dog are traveling in the graph. Use the letters to describe each
line segment. Chose either: A. Backwards B. Constant Speed C. No movement
37. Line A-B
38. Line B-C
39. Line D-E
40. Line F-G
D
C
E F
A B H
G
