Physics Chapter Review

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Across
  1. 2. The normal(or perpendicular) force acting per unit cross-sectional area
  2. 4. A pair of equal and opposite forces that act on an object at different points and produce rotation only
  3. 5. A straight line that touches a curve but does not cross it at a point
  4. 9. The rate of change of velocity of an object
  5. 11. A measurement Of mass in motion.
  6. 13. A quantity with magnitude (size) but no direction
  7. 14. The distance travelled in a particular direction
  8. 15. Force per unit cross-sectional area that acts as right angles to the surface.
  9. 17. Upward force experienced by water or air
  10. 18. Distance per unit time
  11. 19. Force on string or rope when it is stretched
  12. 22. An object’s speed in a particular direction
  13. 25. The effect of a vector along a particular direction
  14. 28. Turning effect of a force
  15. 29. The forceful direct contact of two bodies
  16. 30. Ability to do work, which can be transferred or converted from one form to another, but cannot be created neither destroyed.
Down
  1. 1. A quantity with both magnitude (size) and direction
  2. 3. The force on an object caused by gravitational field acting on its mass
  3. 6. Extension per unit length
  4. 7. The work done when a force of 1N moves a distance of 1m in the direction of force.
  5. 8. Describes a force that squeezes and shortens and object
  6. 10. The name for a resistive force when two surfaces are in contact and tending to slide over one another
  7. 12. Force similar to friction that acts to oppose the motion of an object
  8. 14. Mass per unit volume
  9. 16. A state of balance with some influences, either external or internal
  10. 20. Associated with tension or pulling
  11. 21. The push or pull on an object with mass causes it to change velocity per unit time
  12. 23. A measure of how difficult it is to change the velocity of an object
  13. 24. Rate of working of 1 joule per second. It is the unit of power.
  14. 26. Rate at which a device does work per unit of time
  15. 27. Done on a body when a force moves (displaces) the body in the direction of the force.