College Physics
Alan Giambattista
Betty Richardson
Robert Richardson
4th edition
Chapter 3
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
Question 1
Does the displacement of an object depend on
the specific location of the origin of the
coordinate system?
A) Yes
B) No
Question 2
Ben leaves his home and walks to the bank,
then to the park. What is the distance that
Ben has walked?
A) 2 blocks
B) 3 blocks
C) 5 blocks
D) 7 blocks
Question 3
Ben leaves his home and walks to the bank,
then to the park. What is his final displacement?
A) 2 blocks east
B) 3 blocks east
C) 5 blocks east
D) 7 blocks east
Question 4
Which of the following is a complete description
of the position of the public library?
A) 3 blocks west
B) west of the town square
C) 3 blocks west of the town square
D) 3 blocks away from the town square
E) all of the above
Question 5
The graph of position vs. time is given for a
train. What can you say about the train's
motion from time t1 to time t2?
A) It is moving with constant velocity.
B) It is not moving.
C) It is moving with a constant negative
velocity.
D) It is accelerating.
Question 6
The graph for position vs. time is given at
right for a car. What can you say about
the velocity of the car over time?
A) It speeds up all the time
B) It slows down all the time
C) It moves at constant velocity
D) Sometimes it speeds up and
sometimes it slows
E) not really sure
Question 7
Which represents v vs. t for a dropped ball
bouncing back up?
A)
B)
C)
D)
Question 8
In which of these v vs. t graphs is the
acceleration changing?
A) a
B) b
C) c
D) d
Question 9
If the average velocity is non-zero over a time
interval, does this mean that the
instantaneous velocity is never zero over
that same time interval?
A) Yes
B) No
Question 10
If the velocity of an object is non-zero, can the
acceleration of the object be zero?
A) Yes
B) No
Question 11
When throwing a ball straight up, which of the
following correctly describes the acceleration
vector at the highest point in its path?
A) The acceleration vector points down.
B) The acceleration vector points up.
C) There is no acceleration.
Question 12
In which of the following cases is the
acceleration zero?
A) A car increases its speed from 0 mph to
30 mph.
B) A car decreases its speed from 15 mph
to 5 mph.
C) A car goes around a curve at a speed of
30 mph.
D) A car backs out of a drive at 10 mph.
Question 13
You are bicycling to the grocery store. As you reach
your destination and prepare to stop,
which of the following statements is true?
A) Your velocity is forward and the acceleration is
backward.
B) Your velocity and acceleration are both forward.
C) Your velocity and acceleration are both backward.
D) Your velocity is backward and your acceleration is
forward.
Question 14
A constant force is acting on an object.
Which of these graphs best represents
the velocity of the object?
A)
B)
C)
Question 15
Two blocks of mass m1 and m2 are connected
by strings and pulled with constant
acceleration a. What is the relationship
between the tension in each of the strings?
A) T1 > T2
B) T1 < T2
C) T1 = T2
D) T1 = T2 = 0
Question 16
A force F acts on block 1 with mass m and
block 2 with mass 2m. Which graph
correctly represents the accelerations of the
blocks?
A)
B)
C)
Question 17
A single force is acting on an object. Which
type of motion is not physically allowed?
A) the object speeds up
B) the object is at rest
C) the object slows down
D) the object's motion changes direction
Question 18
A wrench has a mass of 0.75 kg here on earth.
It is shipped up to be used on the
International Space Station. An astronaut
on the Space Station will measure its mass
to be
A) 0 kg.
B) 7.5 N.
C) 1.7 lbs.
D) 0.75 kg.
Question 19
As a train travels with a speed vTG = 15.5 m/s,
Wanda walks toward the front of the train
with a speed vWT = 1.2 m/s. What is her
speed relative to the ground?
A) 0 m/s
B) 16.7 m/s
C) 14.3 m/s
D) impossible to tell
Question 20
You are watching a parade when a float goes
by with speed vf where a child is throwing
darts at a target at the back of the float with
speed vd. You measure the speed of the
darts to be
A) vd
B) vf
C) vd + vf
D) vd - vf
Answer Key – Chapter 3
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
B
D
B
C
B
B
C
C
B
A
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
A
B
A
B
B
C
B
D
B
D