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1 | |
A quantity of 5 m/s2 is a measure of |
| | A) | metric area. |
| | B) | acceleration. |
| | C) | speed. |
| | D) | velocity. |
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2 | |
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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3 | |
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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4 | |
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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5 | |
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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6 | |
A ball rolling across the floor slows to a stop because |
| | A) | there is a net force 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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7 | |
Considering the forces on the system of you and a bicycle as you pedal the bike at a constant velocity in a horizontal straight line, |
| | A) | the force you are exerting on the pedal is greater than the resisting forces. |
| | B) | all forces are in balance, with the net force equal to zero. |
| | C) | the resisting forces of air and tire friction are less than the force you are exerting. |
| | D) | the resisting forces are greater than the force you are exerting. |
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8 | |
If you double the unbalanced force on an object of a given mass, the acceleration will be |
| | A) | doubled. |
| | B) | increased fourfold. |
| | C) | increased by one-half. |
| | D) | increased by one-fourth. |
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9 | |
If you double the mass of a cart while it is undergoing a constant unbalanced force, the acceleration will be |
| | A) | doubled. |
| | B) | increased fourfold. |
| | C) | half as much. |
| | D) | one-fourth as much. |
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10 | |
Doubling the distance between the center of an orbiting satellite and the center of the earth will result in what change in the gravitational attraction of the earth for the satellite? |
| | A) | one-half as much |
| | B) | one-fourth as much |
| | C) | twice as much |
| | D) | four times as much |
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11 | |
If a ball swinging in a circle on a string is moved twice as fast, the force on the string will be |
| | A) | twice as great. |
| | B) | four times as great. |
| | C) | one-half as much. |
| | D) | one-fourth as much. |
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12 | |
A ball is swinging in a circle on a string when the string length is doubled. At the same velocity, the force on the string will be |
| | A) | twice as great. |
| | B) | four times as great. |
| | C) | one-half as much. |
| | D) | one-fourth as much. |
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