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 4 of 6
- A. 20/π rad s
- B. 10/π rad s
- C. 5/π rad s
- D. π rad s
Explanation: The particle completes one full revolution (360 degrees or 2π radians) every 2 seconds, resulting in an angular speed of π radians per…
Correct answer: π rad s- A. 2π/60rads-1
- B. π/24rads-1
- C. 2π/3600rads-1
- D. π/3600rads-1
Explanation: The following is the solution: Time is taken by minute hand to rotate by 2π radians t=1 hr =3600 s ∴ Its angular velocity w= θ/t =2π/3600
Correct answer: 2π/3600rads-1- A. 3600:1
- B. 60:1
- C. 24:1
- D. 12:1
Explanation: It is correct.ratio= minute hand/hour hand= 12*3600/3600 = 12:1
Correct answer: 12:1- A. v2/r
- B. vr
- C. v/r
- D. r/v
Explanation: The explanation is as follows As v=rω ω = v / rwhere: ω is the angular velocity in radians per second (rad/s) v is the linear velocity in…
Correct answer: v/r- A. A
- B. B
- C. C
- D. D
Explanation: Option D is the correct option. the answer can be calculated as: 1rev=2π 1min=60s rev/min=2π /60s =π /30
Correct answer: D- A. y=2π/ω
- B. y=2πω
- C. y=ω/2π
- D. y=πω/2
Explanation: Therefore, the correct answer is option A: y = 2π/ω. The period of circular motion is given by T = 2π/ω, where T represents the period and…
Correct answer: y=2π/ω- A. Head to tail rule
- B. Kirchhoff rule
- C. Left hand rule
- D. Right hand rule
Explanation: The right-hand rule is another mnemonic used to determine the relationships between current, magnetic fields, and induced currents.
Correct answer: Right hand rule- A. rω2
- B. Constant
- C. Zero
- D. rω
Explanation: Explanation is given below. If a body moves with constant angular velocity on a circle, then its angular acceleration is zero.
Correct answer: Zero- A. Minimum.
- B. Maximum.
- C. Less than the mass of the stone.
- D. Equal to the weight of the stone.
Explanation: At the highest position, the tension in the string is T=mv2/r-mgIt is minimum at the top of the circle, and can be zero if the speed is…
Correct answer: Minimum.- A. rad/s2
- B. rad/s
- C. rad.s
- D. rad.s2
Explanation: Option A is correct since angular acceleration is the rate of change of angular velocity of a body and is given by radians/seconds2.
Correct answer: rad/s2- A. 24.6 rad/s
- B. 16.8 rad/s
- C. 10.4 rad/s
- D. 18.8 rad/s
Explanation: wi=12×2π rad/s ( To conver rev/s to rad/s, we multiplied the given velocity with 2π) =24π rad/s Δt=4s = 24π/4 =18.8 rad/s
Correct answer: 18.8 rad/s- A. 20π /3
- B. 30π /3
- C. 40π /3
- D. 20π /4
Explanation: Explanation for this question will be added soon.
Correct answer: 40π /3- A. [LT-1]
- B. [LT]
- C. [LT-2]
- D. [T-1]
Explanation: Angular velocity is defined as the rate of change of angular displacement with respect to time.
Correct answer: [T-1]- A. 0.1π rad/s2
- B. 0.2π rad/s2
- C. 0.3π rad/s2
- D. 0.4π rad/s2
Explanation: Angular acceleration=Change in angular velocity/timeω1 = 60 rpm= 60×2π rad/60s = 2π rad/sω2 = 180 rpm= 180×2π rad/60s = 6π rad/s Putting…
Correct answer: 0.2π rad/s2- A. Zero
- B. Negative
- C. Uniform but not zero
- D. Positive
Explanation: The angular velocity of a mixer grinder rotating clockwise will be negative.
Correct answer: Negative- A. Changing
- B. The same
- C. Increasing
- D. Decreasing
Explanation: When an object moves along a circle at constant speed, v, its angular velocity about the circle's center is also constant, and the object…
Correct answer: The same- A. Positive
- B. Negative
- C. Zero
- D. Infinite
Explanation: The rate of change of angular displacement of a body is called angular velocity.
Correct answer: Negative- A. 1.4 x 10^-4 rads-1
- B. 1.0 x 10^-3 rad s-1
- C. 5.2 x 10^-3 rad s-1
- D. 1.7 x 10^-3 rad s-1
Explanation: w = 2 π/ 3600s ≈ 0.00174 rad/s The linear velocity of a point on the tip of the 3 metres long minute hand is v = wr v = 3 × 0.00174 rad/s…
Correct answer: 5.2 x 10^-3 rad s-1- A. 2
- B. 1.5
- C. 2.5
- D. 0.105
Explanation: One revolution is 360 degrees or 2π rad. Since it's 'Revolution per minute', it would be 2π rad/1 min or 2(3.142)/ 60 seconds; 0.1047…
Correct answer: 0.105- A. 2 pie
- B. pie
- C. 4 pie
- D. 7.3X 10 -5rad s-1
Explanation: The angular speed of the daily rotation of the Earth can be calculated by dividing the angle covered in one day by the time taken to cover…
Correct answer: 7.3X 10 -5rad s-1