The rate of change of angular velocity is called _.
Correct answer: B. Angular acceleration
- A. Angular displacement
- B. Angular acceleration
- C. Angular velocity
- D. Acceleration
Explanation
B. Angular acceleration is the rotational analogue of linear acceleration. The rate of change of linear velocity is known as linear acceleration, and the rate of change of angular velocity is known as angular acceleration. A. Angular displacement is the angle formed when a body revolves in a circle about an axis. C. Angular velocity is the rate of change of angular displacement in rotational motion. D. Acceleration is the rate of change of velocity (linear).
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About Angular Velocity
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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