Review questions for motion in
1 and 2 dimensions
A particle moves from x1 = 30 cm to x2
= –40 cm. The displacement of this
particle along the x-axis is
A.
B.
C.
D.
E.
30 cm
40 cm
70 cm
–70 cm
–40 cm
A particle moves from x1 = 30 cm to x2
= –40 cm. The displacement of this
particle along the x-axis is
A.
B.
C.
D.
E.
30 cm
40 cm
70 cm
–70 cm
–40 cm
A particle moves from x0 = 30 cm to
x = –40 cm in 5 s. The average velocity
of the particle during this time interval
along the x-axis is
A.
B.
C.
D.
E.
2 cm/s
–2 cm/s
14 cm/s
–14 cm/s
–140 cm/s
A particle moves from x0 = 30 cm to
x = –40 cm in 5 s. The average velocity
of the particle during this time interval
along the x-axis is
A.
B.
C.
D.
E.
2 cm/s
–2 cm/s
14 cm/s
–14 cm/s
–140 cm/s
The displacement of an object for a
roundtrip between two locations
A.
B.
C.
D.
is always greater than zero.
is always less than zero.
is zero.
can be greater than or less than but not
equal to zero.
E. can have any value.
The displacement of an object for a
roundtrip between two locations
A.
B.
C.
D.
is always greater than zero.
is always less than zero.
is always zero.
can be greater than or less than but not
equal to zero.
E. can have any value.
An object located at the origin when t
= 0 moves along the x axis as shown in
the diagram. At which point is the
object farthest from its starting point?
An object located at the origin when t
= 0 moves along the x axis as shown in
the diagram. At which point is the
object farthest from its starting point?
Which graph of v versus t best
describes the motion of a particle
whose velocity is constant and
negative?
Which graph of v versus t best
describes the motion of a particle
whose velocity is constant and
negative?
In which graph of v versus t does the
particle end up farthest from its
starting point?
In which graph of v versus t does the
particle end up farthest from its
starting point?
The graph shows the velocity of a
particle as a function of time. From
8 to 12 s shown, the particle travels
A.
B.
C.
D.
E.
0m
100 m
200 m
400 m
600 m
The graph shows the velocity of a
particle as a function of time. In the
12 s shown, the particle travels
A.
B.
C.
D.
E.
0m
100 m
200 m
400 m
600 m
The graph shows the velocity of a particle as
a function of time. What is the acceleration
at 10 s?
A.
B.
C.
D.
E.
0 m/s2
-25 m/s2
-50 m/s2
25 m/s2
50 m/s2
The graph shows the velocity of a
particle as a function of time. What
is the acceleration at 10 s?
A.
B.
C.
D.
E.
0 m/s2
-25 m/s2
-50 m/s2
25 m/s2
50 m/s2
On a graph that shows x-position on
the vertical axis and time on the
horizontal axis, a straight line with a
negative slope represents
A.
B.
C.
D.
E.
a constant negative velocity
a constant negative acceleration.
a decreasing negative acceleration
a constant displacement
an object that is at rest
On a graph that shows x-position on
the vertical axis and time on the
horizontal axis, a straight line with a
negative slope represents
A.
B.
C.
D.
E.
a constant negative velocity
a constant negative acceleration.
a decreasing negative acceleration
a constant displacement
an object that is at rest
Which interval has the highest
magnitude in acceleration?
A.
B.
C.
D.
E.
a–b
b–c
d–e
c–d
They have
equal
acceleration.
Which interval has the highest
magnitude in acceleration?
A.
B.
C.
D.
E.
a–b
b–c
d–e
c–d
They have
equal
acceleration.
A car accelerates uniformly from a
velocity of 10 km/h to 30 km/h in one
minute. Which graph best describes
the motion of the car?
A car accelerates uniformly from a velocity
of 10 km/h to 30 km/h in one minute. Which
graph best describes the motion of the car?
Four successive displacements of 3 km, 4 km,
5 km, and 4 km are at right angles to each
other as shown in the diagram. The
magnitude of the resultant displacement is
A.
B.
C.
D.
E.
2 km
16 km
3 km
5 km
None of these
is correct.
Four successive displacements of 3 km, 4 km,
5 km, and 4 km are at right angles to each
other as shown in the diagram. The
magnitude of the resultant displacement is
A.
B.
C.
D.
E.
2 km
16 km
3 km
5 km
None of these
is correct.
The figure shows the position of the moon at two
times, about 7 days apart. Which vector best
represents the change in the moon's velocity in this
time interval?
A.
B.
C.
D.
E.
The figure shows the position of the moon at two
times, about 7 days apart. Which vector best
represents the change in the moon's velocity in this
time interval?
(Think v2-v1)
A.
B.
C.
D.
E.
A projectile is fired at an angle of 45º above the
horizontal. If air resistance is neglected, the line in
the graph that best represents the horizontal
displacement of the projectile as a function of travel
time is
A.
B.
C.
D.
E.
1
2
3
4
None of these is correct.
A projectile is fired at an angle of 45º above the
horizontal. If air resistance is neglected, the line in
the graph that best represents the horizontal
displacement of the projectile as a function of travel
time is
A.
B.
C.
D.
E.
1
2
3
4
None of these is correct.
A ball is thrown horizontally from a cliff with a
velocity v0. A graph of the acceleration of the ball
versus the distance fallen could be represented by
curve
A.
B.
C.
D.
E.
1
2
3
4
5
A ball is thrown horizontally from a cliff with a
velocity v0. A graph of the acceleration of the ball
versus the distance fallen could be represented by
curve
A.
B.
C.
D.
E.
1
2
3
4
5
A baseball is thrown with a velocity v at an angle
q with the horizontal. The horizontal
component of its velocity in the absence of air
resistance is
A.
B.
C.
D.
E.
v cos q
v cos q – gt
v2 + 2gx
v2 – 2gx
v sin q
A baseball is thrown with a velocity v at an angle
q with the horizontal. The horizontal
component of its velocity in the absence of air
resistance is
A.
B.
C.
D.
E.
v cos q
v cos q – gt
v2 + 2gx
v2 – 2gx
v sin q
A golfer drives her ball from the tee down the
fairway in a high arcing shot. When the ball is at
the highest point of its flight,
A. its velocity and acceleration are both zero.
B. its velocity is zero but its acceleration is
nonzero.
C. its velocity is nonzero but its acceleration is
zero.
D. its velocity and acceleration are both
nonzero.
E. Insufficient information is given to answer
correctly.
A golfer drives her ball from the tee down the
fairway in a high arcing shot. When the ball is at
the highest point of its flight,
A. its velocity and acceleration are both zero.
B. its velocity is zero but its acceleration is
nonzero.
C. its velocity is nonzero but its acceleration is
zero.
D. its velocity and acceleration are both
nonzero.
E. Insufficient information is given to answer
correctly.