Physics 011
MC#2
Chapter 2: Describing Motion: Kinematics in One Dimension
Ayman A.Ghannam
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A bird flies 4.0 meters due north in 2.0 seconds and then flies 2.0 meters due west in 1.0 seconds. What is the bird's average speed? |
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2.0
m/s |
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4.0
m/s |
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8.0
m/s |
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2/3
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If a car is travelling due south with a decreasing speed, then the direction of the car's acceleration is |
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due
east. |
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due
west. |
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due
north. |
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due
south. |
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A hiker travels 60 meters north and then 120 meters south. What is her resultant displacement? |
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20
m south |
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60
m south |
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120
m south |
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180
m south |
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If the average speed of a plane is 500 km per hour, how long will it take to fly 125 km? |
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4.00
h |
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2.00
h |
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0.50
h |
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0.25
h |
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Applying the brakes to a car traveling at 45 km/h provides an acceleration of 5.0 m/s2 in the opposite direction. How long will it take the car to stop? |
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0.40
s |
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2.5
s |
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5.0
s |
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9.0
s |
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A ball rolls down a frictionless inclined plane with a uniform acceleration of 1.0 m/s2. If its velocity at some instant of time is 10 m/s, what will be its velocity 5.0 seconds later? |
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5
m/s |
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10
m/s |
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15
m/s |
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16
m/s |
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A ball rolls down a frictionless inclined plane with a uniform acceleration of 1.0 m/s2. If its initial velocity is 1.00 m/s, how far will it travel in 10 s? |
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10
m |
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12
m |
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60
m |
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100
m |
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A body with an initial speed of 25 m/s accelerates uniformly for 10 seconds to a final speed of 75 m/s. What is the acceleration? |
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3
m/s2 |
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5
m/s2 |
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25
m/s2 |
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50
m/s2 |
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A body initially at rest is accelerated at 5 m/s2 for 10 seconds. What is its final velocity? |
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0.50
m/s |
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2.0
m/s |
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15
m/s |
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50
m/s |
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Which graph represents the motion of a body starting from rest and moving with a constant non-zero acceleration? |
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The speeds of a body at the ends of five successive seconds are: 180, 360, 540, 720, 900 m/h. What is the acceleration of the body? |
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0.05
m/s2 |
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20
m/s2 |
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180
m/s2 |
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180
m/h2 |
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"An object is initially at rest then moves in a straight line and accelerates uniformly at a rate of 2.00 m/s2." After the object has been
in motion for four seconds, its speed would be ___ m/s. |
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6.0 |
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8.0 |
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10 |
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12 |
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20 |
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some
other value |
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"An object is initially at rest then moves in a straight line and accelerates uniformly at a rate of 2.00 m/s2." The distance traveled by
the object during the first five seconds of its travel was ___ m. |
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6.0 |
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10 |
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12 |
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20 |
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25 |
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some
other value |
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"An object is initially at rest then moves in a straight line and accelerates uniformly at a rate of 2.00 m/s2." The average speed of the
object during the first six seconds of its travel was ___ m/s. |
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6.0 |
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8.0 |
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10 |
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12 |
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16 |
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20 |
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"An object is initially at rest then moves in a straight line and accelerates uniformly at a rate of 2.00 m/s2." The average speed of the
object during the third second of its motion was ___ m/s. |
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2.0 |
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3.0 |
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4.0 |
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5.0 |
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6.0 |
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8.0 |
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"An object is initially at rest then moves in a straight line and accelerates uniformly at a rate of 2.00 m/s2." The distance traveled by
the object during the fourth second of its travel was ___ m. |
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2.0 |
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3.0 |
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4.0 |
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5.0 |
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6.0 |
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7.0 |
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"An object of mass m initially at rest experiences a constant acceleration of magnitude ao. After a time interval to has elapsed, the speed of the car is vo and it has traveled a distance do." After a total time 3 to
has elapsed, the speed of the object will be vox ___. |
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1 |
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2 |
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3 |
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4 |
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8 |
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"An object of mass m initially at rest experiences a constant acceleration of magnitude ao. After a time interval to has elapsed, the speed of the car is vo and it has traveled a distance do." After a total time 2 to
has elapsed, the distance traveled by the object will be dox ___. |
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1 |
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2 |
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3 |
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4 |
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8 |
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"Six different objects are observed to move in a straight line. Some aspect of the motion of each of the six objects is plotted as a function of time in the following graphs." Which graph(s)
represent(s) a situation in which the object moved with a constant nonzero
acceleration? |
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"Six different objects are observed to move in a straight line. Some aspect of the motion of each of the six objects is plotted as a function of time in the following graphs." Which graph represents a
situation in which the object moved with a constant zero acceleration? |
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Graph
A |
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Graph
B |
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Graph
C |
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Graph
D |
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Graph
E |
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Graph
F |
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"An object is observed to move in a straight line. Some aspect of the motion of this object is plotted as a function of time in the following graph."
The slope of the dashed line in the graph above represents ___. |
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an
instantaneous position |
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an
average position |
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a
distance traveled |
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an
instantaneous speed |
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an
average speed |
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a
change in speed |
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"An object is observed to move in a straight line. Some aspect of the motion of this object is plotted as a function of time in the following graph."
The slope of the dashed line in the graph above represents ____. |
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an
instantaneous position |
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an
average position |
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an
instantaneous speed |
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an
average speed |
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an
instantaneous acceleration |
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an
average acceleration |
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"An object is observed to move in a straight line. Some aspect of the motion of this object is plotted as a function of time in the following graph."
The shaded area in the graph above represents ___. |
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an
average acceleration |
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an
instantaneous position |
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a
change in position or a distance traveled |
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a
change in speed |
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an
instantaneous speed |
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an
average speed |
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"An object is observed to move in a straight line. Some aspect of the motion of this object is plotted as a function of time in the following graph."
The shaded area in the graph above represents ___. |
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a
change in position |
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an
instantaneous position |
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a
distance traveled |
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a
change in speed |
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an
instantaneous speed |
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an
average speed |
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"The speed of an object moving in a straight
line changes with time as in the figure below." For which of the time intervals was the average speed of the object greatest? |
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t
= 0 to t = 1s |
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t
= 1 to t = 2s |
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t
= 2 to t = 3s |
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t
= 3 to t = 4s |
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t
= 4 to t = 5s |
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none
of the above |
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"The speed of an object moving in a straight
line changes with time as in the figure below." During which time interval did the object travel with a constant nonzero acceleration? |
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t
= 0 to t = 1s |
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t
= 1 to t = 2s |
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t
= 2 to t = 3s |
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t
= 3 to t = 4s |
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t
= 4 to t = 5s |
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none
of the above |
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"The speed of an object moving in a straight
line changes with time as in the figure below." During which time interval was the average speed least? |
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t
= 0 to t = 1s |
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t
= 1 to t = 2s |
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t
= 2 to t = 3s |
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t
= 3 to t = 4s |
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t
= 4 to t = 5s |
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none
of the above |
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"The speed of an object moving in a straight
line changes with time as in the figure below." During which time interval did the maximum value of the magnitude of the instantaneous acceleration occur? |
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t
= 0 to t = 1s |
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t
= 1 to t = 2s |
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t
= 2 to t = 3s |
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t
= 3 to t = 4s |
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t
= 4 to t = 5s |
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none
of the above |
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"The speed of an object moving in a straight
line changes with time as in the figure below." During which time interval was the speed of the object constant? |
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t
= 0 to t = 1s |
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t
= 1 to t = 2s |
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t
= 2 to t = 3s |
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t
= 3 to t = 4s |
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t
= 4 to t = 5s |
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none
of the above |
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"The speed of an object moving in a straight
line changes with time as in the figure below." During which time interval did the minimum value of the instantaneous speed occur? |
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t
= 0 to t = 1s |
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t
= 1 to t = 2s |
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t
= 2 to t = 3s |
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t
= 3 to t = 4s |
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t
= 4 to t = 5s |
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none
of the above |
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"The speed of an object moving in a straight
line changes with time as in the figure below." During which time interval was the magnitude of the average acceleration greatest? |
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t
= 0 to t = 1s |
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t
= 1 to t = 2s |
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t
= 2 to t = 3s |
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t
= 3 to t = 4s |
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t
= 4 to t = 5s |
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none
of the above |
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"The speed of an object moving in a straight
line changes with time as in the figure below." During which time interval was the magnitude of the average acceleration least? |
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t
= 0 to t = 1s |
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t
= 1 to t = 2s |
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t
= 2 to t = 3s |
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t
= 3 to t = 4s |
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t
= 4 to t = 5s |
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none
of the above |
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"For this question, assume that g = 10.00 m/s2. A small stone originally at rest is dropped over the edge of a very tall building." During the fourth second of the fall, the speed of the stone changes ___ m/s. |
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5.0 |
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10 |
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15 |
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20 |
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30 |
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"For this question, assume that g = 10.00 m/s2. A small stone originally at rest is dropped over the edge of a very tall building." During the second second
of fall, the average speed of the stone is ___ m/s. |
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5.0 |
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10 |
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15 |
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20 |
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30 |
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"For this question, assume that g = 10.00 m/s2. A small stone originally at rest is dropped over the edge of a very tall building." During the first second of
fall, the stone falls a distance of ___ m. |
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5.0 |
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10 |
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15 |
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20 |
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30 |
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"For this question, assume that g = 10.00 m/s2. One reaches out over the edge of a tall building and throws a stone straight up with an initial speed of 20.00 m/s." The change in speed of the stone during the first second of its motion is ___ the change in its speed during the third second of its motion. |
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equal
to |
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less
than |
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more
than |
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"For this question, assume that g = 10.00 m/s2. One reaches out over the edge of a tall building and throws a stone straight up with an initial speed of 20.00 m/s." The distance traveled by
the stone during the 1st second is ___ the distance traveled by the stone
during the 2nd second. |
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equal
to |
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less
than |
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more
than |
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"For this question, assume that g = 10.00 m/s2. One reaches out over the edge of a tall building and throws a stone straight up with an initial speed of 20.00 m/s." At the instant the stone
is at its maximum altitude, the acceleration of the stone is ___. |
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10
m/s2 upward |
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10
m/s2 horizontal |
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10
m/s2 downward |
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something
else |
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"For this question, assume that g = 10.00 m/s2. One reaches out over the edge of a tall building and throws a stone straight up with an initial speed of 20.00 m/s." The time required for the
stone to reach its maximum altitude is ___ sec. |
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1 |
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more
than 1 but less than 2 |
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2 |
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more
than 2 |
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5 m/s
