| Question | Answer |
| Unit of angles in circular motion | Radians |
| 360 degrees = ? radians | 2π (2 pi) |
| Formula for angle | s/r |
| Angular velocity | The rate of change of angle |
| Unit of angular velocity | Radians per second |
| Formula for angular velocity | ω = θ/t |
| Linear Velocity | The speed of a particle in a direction perpendicular to the radius at that point |
| Unit of linear velocity | Metres per second |
| Relationship between linear & angular velocity | v = rω |
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