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6. Efficiency=
- mass x gravitational field strength
- Useful output energy / total input energy
- spring constant x extension
- mass x volume
7. Distance travelled=
- mass x acceleration
- mass x gravitational field strength
- speed x time
- power x time
8. Charge flow=
- distance / time
- current x time
- useful output energy / total input energy
- mass x gravitational field strength x hight
9. Force applied to a spring=
- mass / volume
- mass x gravitational field strength x height
- spring constant x extension
- distance / time
10. Potential difference=
- mass x gravitational field strength
- mass x velocity
- current x resistance
- distance / time
11. Wave speed=
- force x distance
- spring constant x extension
- frequency x wavelength
- distance / time
12. Energy transferred=
- distance x time
- current x resistance
- Charge flow x potential difference
- mass x gravitational field strength x height
13. Energy transferred=
- distance x time
- power x time
- current x time
- distance / speed
14. Work done=
- mass / volume
- power x time
- force x distance
- mass x gravitational field strength x height
15. Resultant force=
- change in velocity / time taken
- mass x acceleration
- mass / volume
- spring constant x extension
16. Density=
- change in velocity / time taken
- power x time
- mass / volume
- potential difference x current