MOMENTUM, IMPULS, TURNING EFFECT

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Across
  1. 3. At an angle of 90° to another line or direction.
  2. 5. The turning effect of a force about a pivot.
  3. 7. The quantity that describes how long a force acts during an impulse.
  4. 9. An event in which two or more objects interact through contact forces.
  5. 10. The effect produced when a force causes an object to rotate.
  6. 11. The movement of an object around a fixed point or axis.
  7. 12. The product of force and the time for which the force acts.
  8. 14. The fixed point around which an object turns.
  9. 15. A condition in which clockwise and anticlockwise moments are equal.
  10. 16. The amount of matter in an object.
  11. 18. The direction of turning similar to the hands of a clock.
  12. 19. The perpendicular distance from the pivot to the line of action of a force.
Down
  1. 1. A physical quantity that has both magnitude and direction.
  2. 2. A force that acts in response to another force.
  3. 4. The direction opposite to clockwise turning.
  4. 6. The quantity of motion possessed by a moving object.
  5. 8. The speed of an object in a particular direction.
  6. 9. The principle stating that total momentum remains constant in a closed system.
  7. 13. A push or a pull that can change an object's motion.
  8. 17. A physical quantity that has magnitude but no direction.