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1 | | The speedometer of a car gives you a reading of the car's |
| | A) | constant speed. |
| | B) | average speed. |
| | C) | instantaneous speed. |
| | D) | total speed. |
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2 | | For a trip of several hours duration, a ratio of the total distance traveled to the total time elapsed is a(an) |
| | A) | instantaneous speed. |
| | B) | average speed. |
| | C) | constant speed. |
| | D) | total speed. |
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3 | |
The symbol | (0.0K) | is used to represent |
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| | A) | instantaneous speed. |
| | B) | average speed. |
| | C) | constant speed. |
| | D) | total speed. |
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4 | |
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| | A) | |
| | B) | |
| | C) | |
| | D) | |
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5 | | The size of a quantity is called |
| | A) | vector. |
| | B) | scalar. |
| | C) | ratio. |
| | D) | magnitude. |
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6 | | A quantity of 15 m/s to the north is a measure of |
| | A) | velocity. |
| | B) | acceleration. |
| | C) | speed. |
| | D) | directional distance in the metric system. |
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7 | | A quantity of 60 km/hr describes a(an) |
| | A) | vector. |
| | B) | acceleration. |
| | C) | speed. |
| | D) | metric distance. |
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8 | | A quantity of 5 m/s2 is a measure of |
| | A) | metric area. |
| | B) | acceleration. |
| | C) | speed. |
| | D) | velocity. |
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9 | | Measurements that have both magnitude and direction are |
| | A) | scalar quantities. |
| | B) | vector quantities. |
| | C) | dual quantities. |
| | D) | ratios. |
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10 | | A ratio of Δv/Δt is a measure of motion that is known as (recall that the symbol Δ means "a change in") |
| | A) | speed. |
| | B) | velocity. |
| | C) | acceleration. |
| | D) | none of the above. |
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11 | | A ratio of Δd/Δt is a measure of motion that is known as |
| | A) | speed. |
| | B) | acceleration. |
| | C) | mass density. |
| | D) | none of the above. |
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12 | | Which one of the following is not the same as the expression of m/s2? |
| | A) | m/s/s |
| | B) | (m/s)(s) |
| | C) | (m/s)(1/s) |
| | D) | none of the above |
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13 | | An automobile has how many different devices that can cause it to undergo acceleration? |
| | A) | none |
| | B) | one |
| | C) | two |
| | D) | three or more |
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14 | | You can find an average velocity by adding the initial and final velocity and dividing by 2 only when the acceleration is |
| | A) | changing. |
| | B) | uniform. |
| | C) | increasing. |
| | D) | decreasing. |
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15 | | Ignoring air resistance, an object falling toward the surface of the earth has a velocity that is |
| | A) | constant. |
| | B) | increasing. |
| | C) | decreasing. |
| | D) | acquired instantaneously, but dependent on the weight of the object. |
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16 | | Ignoring air resistance, an object falling near the surface of the earth has an acceleration that is |
| | A) | constant. |
| | B) | increasing. |
| | C) | decreasing. |
| | D) | dependent on the weight of the object. |
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17 | | Two objects are released from the same height at the same time, and one has twice the weight of the other. Ignoring air resistance, |
| | A) | the heavier object hits the ground first. |
| | B) | the lighter object hits the ground first. |
| | C) | they both hit at the same time. |
| | D) | whichever hits first depends on the distance dropped. |
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18 | | A ball rolling across the floor slows to a stop because |
| | A) | there are unbalanced forces acting on it. |
| | B) | the force that started it moving wears out. |
| | C) | the forces are balanced. |
| | D) | the net force equals zero. |
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19 | | If there are no unbalanced forces acting on a moving object it will |
| | A) | slow to a stop. |
| | B) | continue to move. |
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20 | | The distance that an object in free fall has covered is proportional to the square of the |
| | A) | weight of the object. |
| | B) | mass of the object. |
| | C) | time of fall. |
| | D) | distance of the fall. |
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21 | | When you throw a ball directly upward, it is accelerated |
| | A) | only as it falls. |
| | B) | during the instantaneous stop and during the fall. |
| | C) | at all times. |
| | D) | none of the time. |
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22 | | After leaving the rifle, a bullet fired horizontally has how many forces acting on it (ignoring air resistance)? |
| | A) | one, from the gunpowder explosion |
| | B) | one, from the pull of gravity |
| | C) | two, one from the gunpowder explosion and one from gravity |
| | D) | none |
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23 | | Which of the following best describes the path that a bullet follows after it leaves a rifle? |
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| | B) | |
| | C) | |
| | D) | |
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