P2 forces

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Across
  1. 1. force/area
  2. 5. the rate at which energy is transferred
  3. 7. when a spring can no longer return to its original shape it has reached its.....
  4. 11. type of energy associated with motion
  5. 14. mass x velocity
  6. 16. when an object obeys hookes law the line on the force extension graph is......
  7. 18. what gives the acceleration on a velocity time graph
  8. 20. rate of change of velocity
Down
  1. 2. for every action there is and equal and opposite........
  2. 3. tells us how stiff a spring is
  3. 4. a quantity that has both magnitude and direction
  4. 6. the force pushing up on a boat sitting in water
  5. 8. gradient of a distance time graph
  6. 9. Hooke's law tells us that extension of a spring is ....... to force
  7. 10. friction is an example of a ....... force.
  8. 12. when forces are balanced the system is in .....
  9. 13. area under a velocity time graph
  10. 15. velocity x time equals
  11. 17. mass x gravitational field strength.
  12. 19. the .......... of moments states that at equilibrium the clockwise moments equal the anticlockwise moments.