| Front | What does a positive slope on a velocity-time graph represent? |
| Back | Acceleration in the positive direction. |
| Front | Define Efficiency. |
| Back | The ratio of the useful power output from a system to its total power input. |
| Front | An object is said to perform simple harmonic motion when: |
| Back | The oscillations are isochronous.There is a central equilibrium point.The object's displacement, velocity and acceleration change constantly.There is a restoring force always directed towards the equilibrium point.The magnitude of the restoring force is proportional to the displacement. |