Free Simple Harmonic Motion MCQs with Answers
466 Simple Harmonic Motion MCQs from Physics, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Simple harmonic motion is oscillation in which acceleration is directly proportional to displacement and directed toward the equilibrium position. Work includes displacement, velocity, acceleration, phase, period, frequency, amplitude and energy, with applications to springs and simple pendulums. The restoring force and the conditions for SHM distinguish it from general periodic motion.
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466 questions · page 16 of 24
- A. Mean position
- B. Extreme position
- C. Both A and B
- D. None
Explanation: The potential energy of simple pendulum is given by:U=mghWhere:m= massg= gravitational accelerationh= heightIn the context of a vibrating…
Correct answer: Extreme position- A. n2 times
- B. n times
- C. 2n times
- D. (2n + 1) times
Explanation: Let's denote the diameter of the thicker wire as D and the diameter of the thinner wire as d.
Correct answer: n2 times- A. Remains constant.
- B. Changes in magnitude only.
- C. Changes in direction only
- D. Changes both in magnitude and direction
Explanation: In circular motion, the direction of velocity changes at every point and it is along the tangent however, its magnitude remains constant.
Correct answer: Changes in direction only- A. Torque
- B. Angular Displacement
- C. Angular Velocity
- D. All of these
Explanation: Angular displacement, angular velocity, angular acceleration, angular momentum and torque all have direction along the axis of rotation.
Correct answer: All of these- A. 3π rad
- B. 30π rad
- C. 100π rad
- D. 3000π rad
Explanation: 3000 rpm = 3000 x 2π/60 rad/s = 100π rad/s [1 rpm = 2π/60 rad/s]
Correct answer: 100π rad- A. 60 rad/s
- B. π rad/s
- C. π/30 rad/s
- D. 2 rad/s
Explanation: The explanation is: ω = 2π/60 rad/s = π/30 rad/s
Correct answer: π/30 rad/s- A. 18 rad/s
- B. 20 rad/s
- C. 22 rad/s
- D. 24 rad/s
Explanation: The explanation is: To find the angular speed of the body, we need to relate it to the frequency of rotation.The relationship between…
Correct answer: 22 rad/s- A. 2πfC
- B. fC
- C. fC/2π
- D. fC/60
Explanation: The explanation is: C = 2πr --> r = C/2π ω = f rps = 2πf rad/s v = rω v = (C/2π) 2πf = fC
Correct answer: fC- A. R2
- B. R3/2
- C. R
- D. R1/2
Explanation: Explanation is given below. T2=(4π 2 r3)/GM T α r3/2
Correct answer: R- A. Angular displacement
- B. Angular acceleration
- C. Angular velocity
- D. All of these
Explanation: Angular displacement, angular velocity, angular acceleration, angular momentum and torque all have direction along the axis of rotation.
Correct answer: All of these- A. Upward
- B. Downward
- C. Away from us
- D. Towards us
Explanation: When the pedestal fan is switched off, then its angular velocity and acceleration are anti parallel to each other.
Correct answer: Away from us- A. 2π rad s-1
- B. π/1800 rad s-1
- C. π/30 rad s-1
- D. 3600π rad s-1
Explanation: ωm = 2π/3600 rad/s = π/1800 rad/s (minute hand complete 1 revolution in 1 hour)
Correct answer: π/1800 rad s-1- A. Angular speed is slow
- B. Axis of rotation is fixed
- C. Mass of body is very light
- D. Both "A" and "B"
Explanation: When axis of rotation is fixed then all angular vectors have the same direction. Hence they can be manipulated as scalars.
Correct answer: Axis of rotation is fixed- A. If angular velocity is increased
- B. If angular velocity is decreased
- C. If radius is decreased
- D. Both "A" and "B"
Explanation: Angular work is being done When external torque acts on the body that changes the angular velocity (either increase or decrease).
Correct answer: Both "A" and "B"- A. Constantly varying
- B. Fixed
- C. Along the x-axis
- D. Not stable
Explanation: The angular equations holds true only in the case when axis of rotation is fixed. So, that angular vectors have the same direction.
Correct answer: Fixed- A. Base quantity
- B. Supplementary quantity
- C. Vector quantity
- D. Scalar quantity
Explanation: For very small values ∆θ, the angular displacement is a vector quantity, its direction is along the axis of rotation and it is given by…
Correct answer: Vector quantity- A. I,II, III
- B. III, I, III
- C. ll, lll, I
- D. III, II, I
Explanation: Earth completes one rotation in 24 hours Hour hand completes one rotation in 12 hours Second hand completes one rotation in 1 minute…
Correct answer: I,II, III- A. 0°
- B. 90°
- C. 180°
- D. 360°
Explanation: "ac" is directed towards the center of circle while "α" is directed along the axis of rotation
Correct answer: 90°- A. 6 revolutions
- B. 8 revolutions
- C. 2 revolutions
- D. 10 revolutions
Explanation: θ = ωit + -2αt2 = (3)(2) + 1/2(1)(2)2= 6+ 2= 8 rev
Correct answer: 8 revolutions- A. By rockets
- B. Due to gravitational pull of Earth
- C. Due to their high mass
- D. Due to inertia
Explanation: Satellites are the objects which are orbiting around the earth at different heights from the surface of Earth.
Correct answer: Due to gravitational pull of Earth