ข้อสอบสถาบันการบินพลเรือนวิชาฟิสิกส์ชุดที่ 3
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#1. Which of statement that express a relationship to speed or velocity even if the acceleration toward the center of an object moving with constant speed around a given circle?
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#2. Two forces, one of 6 newtons and the other of 8 newtons, act on a point at right angles to each other. The resultant of these forces is, in newtons
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#3. How many meters will a 2.00-kilogram ball starting from rest fall freely in 1.00 second?
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#4. The amplitude of a sound wave is detected as its
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#5. The gravitational force between two masses is equal to 36 newtons. If the distance between them is tripled, then the force of gravity will be
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#6. It is certain that a rod is electrically charged if it
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#7. A 60-watt, 110-volt tungsten filament lamp is operated on 120 volts. Which of the following statements regarding the lamp is (are) true?
I. It will consume more than 60 watts while operating.
II. It will have a lower resistance than at 110 volts.
III. It will be brighter than at 110 volts.
IV. It will burn out after operating ½ hour or less.
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#8. Which pair of forces can produce a resultant of 15 newtons?
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#9. A girl walks 2 meters north, 4 meters west, and 2 meters south. Her final displacement is
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#10. Two forces act together on an object. The magnitude of their resultant is least when the angle between the forces is
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