Angular displacement and angular velocity Quiz
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5 questions, one answer each
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1. What is 150° in radians?
- A. 1.5 rad
- B. 2.62 rad
- C. 3.14 rad
- D. 8.6 rad
2. A wheel turns at a constant 5.0 rad s⁻¹. What is its period?
- A. 0.20 s
- B. 0.80 s
- C. 1.3 s
- D. 31 s
3. A point 0.30 m from the axis of a rotating wheel has speed 6.0 m s⁻¹. What is the angular velocity?
- A. 1.8 rad s⁻¹
- B. 0.050 rad s⁻¹
- C. 20 rad s⁻¹
- D. 2.0 rad s⁻¹
4. A turntable rotates at 45 rpm. What is its angular velocity?
- A. 0.75 rad s⁻¹
- B. 4.7 rad s⁻¹
- C. 45 rad s⁻¹
- D. 283 rad s⁻¹
5. Two points are on a spinning disc, one at 0.10 m and one at 0.20 m from the axis. Which statement is correct?
- A. The outer point has twice the angular velocity
- B. Both have the same speed
- C. The inner point has the greater speed
- D. Both have the same angular velocity and the outer has twice the speed