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1.
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To specify the position of an object, you need to know
A. | its motion. | B. | a reference point. | C. | its
speed. | D. | a unit of measurement. |
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2.
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A person on a moving train sees a car that appears to be stopped. A person
outside the train sees both the car and the train moving. This example shows
A. | a unit of measurement. | B. | changing speed. | C. | relative
motion. | D. | measurement of distance. |
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3.
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Which tells you how quickly an object changes position?
A. | direction | B. | relative motion | C. | speed | D. | observation |
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4.
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To find the speed of an object in motion, you need to measure
A. | time and direction. | B. | distance and direction. | C. | time and
velocity. | D. | distance and time. |
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5.
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One example of a vector is
A. | velocity. | B. | speed. | C. | distance. | D. | position. |
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6.
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A flat, or horizontal, line on a distance-time graph means that the speed
is
A. | increasing. | B. | decreasing. | C. | higher than
average. | D. | zero. |
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7.
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Motion is a change in
A. | position over time. | B. | speed over time. | C. | velocity over
time. | D. | acceleration over time. |
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8.
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Elena is riding her bicycle. She begins pedaling harder. What do you predict
will happen?
A. | Her velocity will decrease. | B. | Her acceleration will
decrease. | C. | Her speed will increase. | D. | Her position will not
change. |
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9.
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Speed in a specific direction is
A. | acceleration. | B. | distance. | C. | position. | D. | velocity. |
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10.
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Which statement is TRUE of momentum?
A. | The momentum of an object is the product of mass times
acceleration. | B. | Momentum is a measure of mass in motion. | C. | Momentum is another
name for inertia. | D. | The unit for momentum is the kilogram-meter per
newton. |
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11.
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Sara walked north at 100 m/s. Han had a different velocity but the same speed.
He could have walked
A. | north at 200 m/s | B. | south at 50 m/s | C. | west at 100
m/s | D. | north at 100 m/s |
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12.
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Jess drives at a steady velocity. Her acceleration is
A. | equal to zero. | B. | in the same direction as her
motion. | C. | opposite to her motion. | D. | at a right angle to her
motion. |
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13.
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On a velocity-time graph, a line that is slanted down from left to right
shows
A. | negative acceleration. | B. | positive acceleration. | C. | zero
acceleration. | D. | steady acceleration. |
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14.
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Drew watches a car that appears to be moving forward. Which of the following
could be true?
A. | Drew is in another car moving backward. | B. | The other car is
moving backward relative to Drew. | C. | Drew is in a car moving forward relative to the
other car. | D. | The other car is moving sideways with respect to
Drew. |
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Use the graph below to answer the questions
15 - 17.
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15.
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What is the average speed of the object traveling?
A. | 0 m/s | B. | 0.6 m/s | C. | 1.5
m/s | D. | 6.0 m/s |
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16.
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What happens to the object between the 30 - 40 second interval?
A. | the object stops | B. | the object slows down | C. | the object speeds
up | D. | the object changes direction |
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17.
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When is the object’s speed the greatest?
A. | between the 0 - 10 second interval | B. | between the 20 - 30 second
interval | C. | between the 30 - 40 second interval | D. | between the 50 - 60 second
interval |
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18.
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If momentum is conserved, then the total momentum after a collision is equal
to
A. | the total momentum before the collision. | B. | the total force
before the collision. | C. | the momentum of the more massive
object. | D. | the momentum of the faster object. |
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19.
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Which is an example of zero acceleration?
A. | a school bus coming to a stop | B. | an ice hockey player turning
around | C. | a person walking on a treadmill at a steady rate | D. | an airplane speeding
up along a runway |
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20.
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Melanie is accelerating as she skates on the ice. However, the speed at which
she is skating has not changed. A possible explanation for this is that Melanie
A. | is skating in a wide circle. | B. | is skating in a straight
line. | C. | has reached the top speed at which she can skate. | D. | has stopped skating
and is now standing still. |
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21.
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Roger observed an airplane flying overhead. He measured its speed and noted that
it moved from north to south. Roger determined the plane's
A. | acceleration | B. | distance | C. | position | D. | velocity |
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22.
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On a roller coaster, the cars first climb a hill at a decreasing speed. Then the
cars speed up as they go down the hill, before coasting at a steady speed on a straight track.
Finally, the cars slow down as the ride ends. The cars have zero acceleration while
A. | climbing the hill. | B. | descending the hill. | C. | coasting on the
straight track. | D. | near the end of the track. |
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Use the table below to answer questions 23 and
24.
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23.
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Both Car A and Car B have the same rate of acceleration during the 40 - 60
second interval. What is their rate of acceleration during this period?
A. | -0.25 m/s² | B. | -0.5 m/s² | C. | 0.25
m/s² | D. | 0.5 m/s² |
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24.
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What is Car A’s acceleration during the 60 - 80 second interval?
A. | -0.25 m/s² | B. | -0.5 m/s² | C. | 0.25
m/s² | D. | 0.5 m/s² |
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25.
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A small SUV that has a mass of 1,486 kg travels east, at a velocity of 35
m/s? What is the vehicle’s momentum?
A. | 0 kg·m/s | B. | 0.2 kg·m/s | C. | 42.5
kg·m/s | D. | 52,010 kg·m/s |
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