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 17 of 24
- A. 0
- B. 2 J
- C. 1 J
- D. 4 J
Explanation: W =Fc .dW= Fcd cosθ = Fcd cos90° = Fd (0) = 0Due to centripetal force the object will move in a circular path.
Correct answer: 0- A. Zero
- B. 19.8 J
- C. 4.9 J
- D. 9.8 J
Explanation: No work done in circular motion due to centripetal force.
Correct answer: Zero- A. 3π/2 radians
- B. π/2 radians
- C. 2π/3 radians
- D. 5π/2 radians
Explanation: Option C is correct.The angle between hour and minute hand at 1'O clock = 2π/12 radThe angle between hour and minute hand at 4'O clock = 4…
Correct answer: 2π/3 radians- A. Micro waves
- B. Ultravoilet rays
- C. Infrared waves
- D. Cosmic waves
Explanation: Option A is correct.Microwave signals are used for satellite telecommunications.
Correct answer: Micro waves- A. 2π rad/s
- B. 2π/15 rad/s
- C. π rad/s
- D. 4π rad/s
Explanation: Option B is correct.Given data :4 rev/min Solution:4 rev/min = 4 x 2π/60 = 2π/15 rad/s
Correct answer: 2π/15 rad/s- A. 240π meters
- B. 2π meters
- C. 80π meters
- D. 80 meters
Explanation: Option D is correct.An athlete complete 1 round in 40 s. it means that 3 rounds complete 120s (2 minutes), so total displacement is zero…
Correct answer: 80 meters- A. 5 ms-1
- B. 20 ms-1
- C. 100 ms-1
- D. 0.5 ms-1
Explanation: Option B is correct.Given data: r=2m, w=10rad/sfind out:vt=?solution:vt = rω = (2)(10) = 20 m/s
Correct answer: 20 ms-1- A. Unequal arms are equal
- B. Equal arms are equal
- C. Unequal arms are unequal
- D. None of these
Explanation: Option D is correct.Two isosceles triangles are similar if an angle of one is congruent to the corresponding angle of the other.No, two…
Correct answer: None of these- A. Displacement
- B. Velocity
- C. Acceleration
- D. All of these
Explanation: Option D is correct.1.We know that: S= rθ Hence,For a body moving in a circle, its linear displacement is equal to radius times angular…
Correct answer: All of these- A. 2 x 10^3N
- B. 1 x 10^4N
- C. .2 x 10^4N
- D. 0.5 x 10^4N
Explanation: Option B is correct.Given data: m=1000kg , v=10ms-1, r=10mFind out:Fc=?Solution:We know that:Fc=mv2/r = 1000(10)2/10 =1 x 104N
Correct answer: 1 x 10^4N- A. 1 : 15
- B. 15 : 1
- C. 1 : 60
- D. 60 : 1
Explanation: Option C is correct.We know that :ws=2π/60 ,wm=2π/3600(Minute hand complete 1 revolution in 1 hour)wm /ws =2π/3600 \2π/60 =60/3600 =1/60…
Correct answer: 1 : 60- A. Equal
- B. In the ratio of 2: 1
- C. In the ratio of √2 : 1
- D. In the ratio of 4 : 1
Explanation: Explanation is given below. Acceleration formula is v^2/r
Correct answer: Equal- A. slides into the inside of the curve
- B. slides off to the outside of the curve
- C. makes the turn
- D. Makes the turn only if it goes faster
Explanation: To move in the circular path the required centripetal force must be provided by any source.
Correct answer: slides off to the outside of the curve334. When a wheel, 1 m in diameter makes 30 rev min-1, the linear speed of point on its rim in ms-1 is:
- A. 2π
- B. π
- C. π/2
- D. 20π
Explanation: v = rω = (1/2)(30×2π/60) = π/2 m/s (r = d/2 = 1/2 m).
Correct answer: π/2- A. The centripetal force upon him is less than limiting friction
- B. The centripetal force upon him is greater than limiting friction
- C. The centripetal force upon him is equal to the limiting friction
- D. The friction betsseen the tyres of the cycle and road vanishes
Explanation: To move in the circular path the required centripetal force must be provided by any source.
Correct answer: The centripetal force upon him is greater than limiting friction- A. F = ma
- B. τ = 1α
- C. F = ∆P/∆t
- D. All of above
Explanation: The analogous of Newton's 2nd law in angular motion is τ= 1α
Correct answer: τ = 1α- A. A force that is tangent to the path.
- B. An acceleration tangent to the path
- C. A force of constant magnitude that is always directed away from the same fixed point
- D. A force of constant magnitude that is always directed toward the same fixed point
Explanation: The force which is needed to move a body in a circular path and it is always directed towards the centre of the circle, is called…
Correct answer: A force of constant magnitude that is always directed toward the same fixed point- A. 2.4 x 10^-2 N
- B. 1.4π x 10-2 N
- C. 1.4 x 10^-2 N
- D. 2.4π2 x 10^-2 N
Explanation: Fc = mv2/r = (0.04)(0.6)2/1 = 144/10000 = 1.4 x 10-2N
Correct answer: 1.4 x 10^-2 N- A. its acceleration and velocity are always in the same direction
- B. its acceleration is toward the Earth
- C. its velocity is constant
- D. it will fall back to Earth when its fuel is used up
Explanation: Artificial satellites are put into their orbits by rockets and are held in orbits by the gravitational pull of the Earth.
Correct answer: its acceleration is toward the Earth- A. each point on its rim moves with constant velocity
- B. each point on its rim moves with constant acceleration
- C. the wheel turns through equal angles in equal times
- D. the angle through which the wheel turns in each second increases as time goes on
Explanation: If a body covers equal angular displacement in equal time intervals, then it is said to be in uniform angular velocity.
Correct answer: the wheel turns through equal angles in equal times