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1 | |
When an object is vibrating with simple harmonic motion, its acceleration is a minimum when it passes through its equilibrium position. |
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| | A) | True |
| | B) | False |
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2 | |
Simple harmonic motion is realized only in the absence of friction. |
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| | A) | True |
| | B) | False |
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3 | |
In simple harmonic motion, the velocity is greatest when the oscillating body reaches its amplitude. |
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| | A) | True |
| | B) | False |
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4 | |
The greater the period of vibration, the greater the maximum acceleration of a body vibrating with simple harmonic motion. |
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| | A) | True |
| | B) | False |
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5 | |
The maximum velocity in simple harmonic motion occurs when the angle on the reference circle is 90° or 270°. |
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| | A) | True |
| | B) | False |
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6 | |
In simple harmonic motion, the acceleration is quadrupled when the frequency is increased by a factor of 2. |
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| | A) | True |
| | B) | False |
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7 | |
Since the acceleration due to gravity is less at higher elevations, the length of a pendulum in a pendulum clock should be shortened. |
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| | A) | True |
| | B) | False |
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8 | |
For a torsion pendulum, increasing the moment of inertia of the vibrating disk will increase the frequency of vibration. |
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| | A) | True |
| | B) | False |
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9 | |
The acceleration of a harmonic oscillator is a function of displacement but independent of amplitude. |
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| | A) | True |
| | B) | False |
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10 | |
The velocity of a harmonic oscillator depends on the frequency of vibration but is independent of amplitude. |
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| | A) | True |
| | B) | False |
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11 | |
If the frequency does not change in simple harmonic motion, the acceleration of a mass is directly proportional to its |
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| | A) | velocity |
| | B) | displacement |
| | C) | mass |
| | D) | amplitude |
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12 | |
In simple harmonic motion, the velocity at any instant is not a direct function of the |
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| | A) | period |
| | B) | amplitude |
| | C) | time |
| | D) | frequency |
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13 | |
In simple harmonic motion, the radius of the reference circle corresponds most closely with the actual |
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| | A) | displacement |
| | B) | velocity |
| | C) | amplitude |
| | D) | period |
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14 | |
The period of a pendulum is determined by its |
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| | A) | maximum speed |
| | B) | length |
| | C) | amplitude |
| | D) | mass |
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15 | |
A body vibrating with simple harmonic motion experiences its maximum restoring force when it is at its |
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| | A) | equilibrium position |
| | B) | amplitude |
| | C) | greatest speed |
| | D) | lowest acceleration |
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16 | |
A 2-kg mass m moves in simple harmonic motion with a frequency f. What mass will cause the system to vibrate with twice the frequency? |
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| | A) | 0.5 kg |
| | B) | 4 kg |
| | C) | 8 kg |
| | D) | 16 kg |
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17 | |
At the instant a harmonic oscillator has a displacement of -8 cm, its acceleration is 2 cm/s². The period is |
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| | A) | 8Π s |
| | B) | 4Π s |
| | C) | 2Π s |
| | D) | Π s |
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18 | |
A harmonic oscillator vibrates with a frequency of 4 Hz and an amplitude of 2 cm. Its maximum velocity is |
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| | A) | 2Π cm/s |
| | B) | 4Π cm/s |
| | C) | 8Π cm/s |
| | D) | 16Π cm/s |
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19 | |
In Question 18, the maximum acceleration is |
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| | A) | 256Π² cm/s² |
| | B) | 128Π² cm/s² |
| | C) | 64Π² cm/s² |
| | D) | 32Π² cm/s² |
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20 | |
A 2-kg steel ball is attached to the end of a flat strip of metal that is clamped at its base. If the spring constant is 8 N/m, the frequency of vibration will be approximately |
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| | A) | 0.08 Hz |
| | B) | 0.16 Hz |
| | C) | 0.32 Hz |
| | D) | 0.64 Hz |
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21 | |
The is used to compare the motion of an object moving in a circle with its horizontal projection. |
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22 | |
In simple harmonic motion, when the displacement is a maximum, the is zero and the is a maximum. |
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23 | |
The product of the amplitude and the cosine of the reference angle is the of a body vibrating with simple harmonic motion. |
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24 | |
The and therefore the of a vibrating object are zero at the center of oscillation |
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25 | |
In simple harmonic motion, the and the are always opposite in sign. |
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26 | |
To calculate the period for a torsion pendulum, we must know the of the disk and the . |
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27 | |
The period can be computed if the acceleration is known at a particular . |
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28 | |
In simple harmonic motion, the restoring force is directly proportional to the and in direction. |
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29 | |
If the frequency f is to be calculated from the known spring constant k, we must know the of the vibrating body. |
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30 | |
For the vibration of a pendulum to approximate simple harmonic motion, the must be small. |
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