Question | Answer |
Distance (D) | Describes an object's actual movement. (Scalar) |
Displacement | Describes change in position; is the distance travelled in a particular direction. (Vector) |
Speed | How fast an object moves. |
Formula for Speed | Distance / Time D / t |
Velocity | Speed in a specific direction. Metres per second (m/s) |
Formula for Velocity | Displacement / Time |
Accelerate | Change in velocity. Metres per second squared (m/s²) |
Formula for Acceleration | Change in velocity / Time Final Velocity (v) - Initial Velocity (u) / Time (t) v - u / t |
Momentum | The product of an object's mass & velocity. (kg m/s) |
Formula for Momentum (p) | Mass x Velocity |
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