Machine Kinematics Multiple Choice Questions and Answers – Velocity and Acceleration of a Particle Moving with Simple Harmonic Motion

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Questions
1 A body is said to vibrate with simple harmonic motion if its acceleration is proportional to the distance from the mean position.
A True
B False

Answer: True
2 The maximum displacement of a body, from its mean position is called amplitude.
A True
B False

Answer: True
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3 Frequency of vibrations is usually expressed in
A number of cycles per hour
B number of cycles per minute
C number of cycles per second
D none of the mentioned

Answer: number of cycles per second
4 The amplitude of vibrations is always ______________ the radius of the circle.
A equal to
B less than
C greater than
D none of the mentioned

Answer: equal to
5 The time taken by a particle for one complete oscillation is known as periodic time.
A True
B False

Answer: True
6 The periodic time is given by
A ω/2п
B 2п/ω
C ω x 2п
D п/ω

Answer: 2п/ω
7 When a body moves with simple harmonic motion, the product of its periodic time and frequency is equal to
A zero
B one
C п/2
D п

Answer: one
8 The acceleration of the particle moving with simple harmonic motion is ____________ at the mean position.
A zero
B minimum
C maximum
D none of the mentioned

Answer: zero
9 The maximum velocity of a particle moving with simple harmonic motion is
A ω
B ωr
C ω2r
D ω/r

Answer: ωr
10 When a particle moves round the circumference of a circle of radius r with ω rad/s, then its maximum acceleration is ω2r.
A True
B False

Answer: True
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