Quiz
Quiz
(See related pages)

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