Free Angular Velocity MCQs with Answers
105 Angular Velocity MCQs from Physics, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Angular velocity describes how quickly angular displacement changes with time, with ω = Δθ/Δt and units of radians per second. Questions relate angular and linear motion through v = rω, use the direction given by the right hand rule, and distinguish angular velocity from angular acceleration and ordinary frequency.
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105 questions · page 2 of 6
- A. π/6
- B. π/4
- C. π/12
- D. π/8
Explanation: The hour hand of a clock completes one full revolution (2π radians) in 12 hours.
Correct answer: π/6- A. Radian
- B. Radian per second
- C. Radian per second2
- D. None
Explanation: Angular acceleration (α) is the rate of change of angular velocity (ω) with respect to time (t):The formula for angular acceleration is…
Correct answer: Radian per second2- A. when a body is rotating
- B. when velocity of body is in straight line
- C. when velocity is in straight line
- D. none of these
Explanation: Angular velocity: Angular velocity is a specific measure of rotational motion.
Correct answer: when a body is rotating- A. When body is rotating.
- B. When velocity of body is in a straight line.
- C. When velocity is in a straight line.
- D. None
Explanation: Angular velocity is particularly useful when dealing with rotational motion. It describes how fast an object rotates about an axis.
Correct answer: When body is rotating.- A. 16 rad/s
- B. 22 rad/s
- C. 32 rad/s
- D. 250 rad/s
Explanation: Angular displacement θ = 10 rev = 20π ≈ 62.832 rad. Use ω² = 0² + 2αθ ⇒ ω = √(2·4·62.832) ≈ √502.66 ≈ 22.4 rad/s.
Correct answer: 22 rad/s- A. π/3 radian hour-1
- B. π/6 radian hour-1
- C. π/12 radian hour-1
- D. 12π radian hour-1
Explanation: Earth rotates 2π radians in 24 hours, so ω = 2π/24 = π/12 rad per hour.
Correct answer: π/12 radian hour-1- A. m1:m2
- B. 1:1
- C. r1:r2
- D. m1r1:m2r2
Explanation: If both complete a revolution in the same time, their angular speeds ω = 2π/T are equal.
Correct answer: 1:1- A. Along linear velocity
- B. Towards the center
- C. Along the axis of rotation
- D. Away from center
Explanation: Angular velocity is an axial vector, directed along the axis of rotation according to the right‑hand rule.
Correct answer: Along the axis of rotation- A. 2π
- B. π
- C. 1/2π
- D. π/2
Explanation: Angular frequency ω relates to ordinary frequency f by ω = 2πf, so the ratio ω/f = 2π. Thus option A is correct.
Correct answer: 2π- A. 30 rad/s2
- B. 30 rev/s2
- C. 3.14 rad/s2
- D. 500 rev/s2
Explanation: 300 rev/min = 5 rev/s ⇒ ω = 5×2π = 10π rad/s. Average α = Δω/Δt = (10π − 0)/10 = π rad/s² ≈ 3.14 rad/s².
Correct answer: 3.14 rad/s231. When a body moves in a circle, the angle between its velocity v and angular velocity ω is always:
- A. 0°
- B. 180°
- C. 360°
- D. 90°
Explanation: The linear velocity is tangential while angular velocity is axial (perpendicular to the plane of motion).
Correct answer: 90°- A. π/6 rad s -1
- B. π/16 rad s -1
- C. π/20 rad s -1
- D. π/30 rad s -1
Explanation: The answer can be calculated as:1rev=2π1min=60srev/min=2π /60s =π /30.
Correct answer: π/30 rad s -1- A. 1.4 x 10^-4 rads-1
- B. 5.2 x 10^-3 rads-1
- C. 1.7 x 10^-3 rads-1
- D. 1.0 x 10^-1 rads-1
Explanation: The minute hand completes 1 revolution in 60 minutes = 3600 seconds. One revolution = 2π radians.
Correct answer: 1.7 x 10^-3 rads-1- A. Zero
- B. 90
- C. 1
- D. -1
Explanation: Torque will be zero because the force on the object is zero, since it is not accelerating.
Correct answer: Zero- A. 2:1
- B. 1:6
- C. 1:30
- D. 1:1
Explanation: The moon orbits the Earth once every 27.322 days. In the same amount of time, the moon rotates once on its axis.
Correct answer: 1:1- A. 1 rad/s2
- B. 3 rad/s2
- C. 5 rad/s2
- D. 7 rad/s2
- E. 9 rad/s2
Explanation: The angular acceleration of a rotating object can be found using the formula α = (ωf - ωi) / t, where ωf is the final angular velocity, ωi…
Correct answer: 1 rad/s2- A. Speed
- B. Frequency
- C. Distance
- D. Time
- E. Gravity
Explanation: Angular acceleration is defined as the rate of change of angular velocity with respect to time.
Correct answer: Time- A. 𝝅 rad/s2
- B. 9 𝝅 rad/s2
- C. 8 𝝅 rad/s2
- D. ⅔ 𝝅rad / s2
- E. Insufficient data
Explanation: This is the following solution.First, we need to convert the given angular velocities from cycles per minute to radians per second.
Correct answer: 𝝅 rad/s2- A. Change in angular displacement/change in time
- B. Change in displacement/change in time
- C. Change in speed/change in time
- D. Change in acceleration/change in time
Explanation: OPTION A:Angular velocity=Change in angular displacement/Change in timeHence, A is the correct option.OPTION B: Linear velocity=Change in…
Correct answer: Change in angular displacement/change in time- A. Change in angular rotation / change in time
- B. Change in displacement / change in time
- C. Change in speed / change in time
- D. Change in acceleration / change in time
Explanation: Angular velocity is the time rate at which an object rotates or revolves about an axis.
Correct answer: Change in angular rotation / change in time