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 18 of 24
- A. Clockwise about an axis that is perpendicular to the page
- B. Counterclockwise about an axis that is perpendicular to the page
- C. About an axis that is parallel to the page
- D. About an axis that is changing orientation
Explanation: If we grasp the axis of rotation in our right hand such that the fingers are curled in the direction of rotation.
Correct answer: Counterclockwise about an axis that is perpendicular to the page- A. 10π m/s2
- B. 500π m/s2
- C. 0.50 m/s2
- D. 10π2 m/s2
Explanation: ac=rw2 =0.10(5×2π)2 =0.10×100π2 = 10π2m/s
Correct answer: 10π2 m/s2- A. applied tangentially halfway between the axis and the rim
- B. applied tangentially at the rim
- C. applied radially halfway between the axis and the rim
- D. applied radially at the rim
Explanation: τ = lα rF = lα α = rF/l Torque produces the angular acceleration in the body.
Correct answer: applied tangentially at the rim- A. angular momentum
- B. total linear momentum
- C. Angular acceleration
- D. Kinetic energy
Explanation: Two equal but opposite forces at different line of action form a couple.
Correct answer: total linear momentum- A. twice the angular velocity of wheel 1
- B. the same as the angular velocity of wheel 1
- C. half the angular velocity of wheel 1
- D. more than twice the angular velocity of wheel 1
Explanation: As two wheels roll side-by-side only ifv1 = v2r1ω1 = r2ω2r1ω1 = (2r1)ω2ω2 = ω1/2
Correct answer: half the angular velocity of wheel 1- A. 1 rad
- B. π rad
- C. 53.7o
- D. All of these
Explanation: The angular displacement traced by the body is said to be one radian when the arc length is equal to the radius of the circle.< AOB =…
Correct answer: π rad- A. Slightly less
- B. Zero
- C. Slightly greater
- D. Maximum
Explanation: At centre of Earth g = 0 w = mg = m (0) = 0
Correct answer: Zero- A. Tangential acceleration
- B. Angular acceleration
- C. Radial acceleration
- D. Rotational acceleration
Explanation: This acceleration is directed along the radius towards the centre of circle. So it is also known as radial acceleration.
Correct answer: Radial acceleration- A. π/6 rad s-1
- B. π/20 rad s-1
- C. π/15 rad s-1
- D. π/30 rad s-1
Explanation: 1 rev /min = 1 x 2π/60 rad/s = π/30 rad/s
Correct answer: π/30 rad s-1- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation: Relation between linear and angular velocity in vector form is v = ω × r
Correct answer: Option A- A. Due to the reaction between the car and ground
- B. Due to rolling frictional force between tyre and road
- C. By the gravitational force
- D. Due to lack of sufficient centripetal force
Explanation: Fact: When an object takes a turn two forces come to act.Centripetal forceCentrifugal forceCentripetal force acts inward (towards the…
Correct answer: Due to lack of sufficient centripetal force- A. 4π2/9 N
- B. 40π2/9 N
- C. 100π2/9 N
- D. 400π2/9 N
Explanation: Resultant force, F = mrω2 = mr(2π/T)2 = 2 × 5 × (2π/3)2 = 40π2/9 N After evaluating, we find that the correct answer is option B) 40π2/9…
Correct answer: 40π2/9 N- A. Velocity
- B. Acceleration
- C. Centripetal force
- D. Kinetic energy
Explanation: As K.E depends upon magnitude of velocity i.e. speed. In a horizontal circle as speed is constant so K.E remains constant.The correct…
Correct answer: Kinetic energy- A. 3 π rad s-2
- B. 9 π rad s-2
- C. 6 π rad s-2
- D. 12 π rad s-2
Explanation: α = Δω/Δt ω = (540 x 2π)/60 = 18 π α = 18π / 6 = 3π rads-2
Correct answer: 3 π rad s-2- A. 3 N
- B. 13 N
- C. 15 N
- D. 18 N
Explanation: Tention = mω2r - mg (where m = mass, ω = angular velocity, r = radius) Tention = (0.5 x 42 x 1) - (0.5 x 10) Tention = (0.5 x 16) - 5 = 8…
Correct answer: 3 N- A. Circular motion
- B. Uniform circular motion
- C. Uniform circular motion with fixed axis of rotation
- D. Uniform circular motion with axis of rotation not defined
Explanation: Uniform circular motion with fixed axis of rotation: It correctly describes the motion of the particle to be circular; as it remains at a…
Correct answer: Uniform circular motion with fixed axis of rotation- A. 2 rad s-1
- B. 6 rad s-1
- C. 4 rad s-1
- D. 8 rad s-1
Explanation: Convert 1600 cm/s into m/s = 1600/ 100 = 16m/s ω = v/r (radius = diameter/2 = 4/2 = 2m) ω = 16 / 2 = 8 rads-1
Correct answer: 8 rad s-1- A. 2π rad/s
- B. 4π2 rad/s
- C. 4π rad/s
- D. π rad/s
Explanation: 120 rev/ min =120 x 2π / 60 rad/sec =4π rad / sec
Correct answer: 4π rad/s- A. Velocity and acceleration are perpendicular to each other
- B. Velocity and acceleration are parallel to each other
- C. Velocity and acceleration are anti-parallel
- D. Both have zero magnitude
Explanation: The velocity of an object in circular motion is always tangent to the circle, while the acceleration is always directed toward the center…
Correct answer: Velocity and acceleration are perpendicular to each other- A. 1 : 1
- B. 2 : 3
- C. 3 : 2
- D. 1 : 6
Explanation: All the points on rotating body have same angular acceleration.
Correct answer: 1 : 1