Across
- 5. a body suspended from a fixed point allowed to swing freely
- 6. the law which relates the extension of a spring and the force applied to it
- 8. the distance travelled divided by the time taken to travel that distance
- 12. the force experienced on a body due to gravity
- 13. the rate at which work is done
- 16. a force of attraction between any objects with mass
- 17. the ratio of useful work to energy expended
- 19. the state of matter without definite volume
- 20. the rate of change of velocity
Down
- 1. any device which uses a force acting at one point to overcome a force at another point
- 2. how far two points are in a given direction
- 3. a force which always opposes motion
- 4. the net combination of two or more vectors
- 7. the state of being balanced
- 9. the ability to do work
- 10. the turning effect of a force about a pivot
- 11. a quantity that has only magnitude but no direction
- 14. the S.I unit of work is the
- 15. all forces are measured in this unit
- 18. the force applied per unit area