Motion in a Plane – Uniform Circular Motion

Grade 11 Physics — Motion in a Plane – Uniform Circular Motion: 25 practice questions with instant scoring and explanations.

1. In uniform circular motion, which is constant?
2. Centripetal acceleration is directed:
3. Centripetal acceleration =
4. Angular velocity ω relates to linear velocity v by:
5. Period T of uniform circular motion is:
6. Frequency f equals:
7. Centripetal force on a body moving in a circle of radius r with speed v is:
8. A car of mass 1000 kg moves in a circle of radius 50 m at 10 m/s. The centripetal force is:
9. A satellite moving in a circular orbit experiences which net force?
10. In uniform circular motion, the work done by the centripetal force in one revolution is:
11. Tangential acceleration in uniform circular motion is:
12. If ω is constant, the direction of velocity:
13. For a particle moving with ω = 2 rad/s in a circle of radius 0.5 m, speed is:
14. Centripetal force is:
15. A stone tied to a string whirled in a horizontal circle; the string tension provides:
16. If the speed of circular motion doubles, centripetal acceleration becomes:
17. Relation between angular and linear acceleration in circular motion:
18. A conical pendulum moves in a horizontal circle. The component providing centripetal force is:
19. If radius is doubled and speed kept constant, centripetal force becomes:
20. Angular velocity of Earth about its own axis (in rad/s) is approximately:
21. For uniform circular motion, velocity and acceleration are:
22. An object moves in a circle with changing speed. It has:
23. A car moving at 20 m/s on a curve of radius 50 m experiences centripetal acceleration:
24. Unit of angular velocity is:
25. The minimum speed at the top of a vertical circle (radius r) for string taut (g=10 m/s², r=0.4 m):