simple machines & More

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Across
  1. 4. an object at rest stays at rest until an external force acts on it.
  2. 7. rate at which velocity changes with time, in terms of both speed and direction.
  3. 9. The speed of something in a given direction
  4. 13. An act of changing positions
  5. 14. And Axle simple lifting machine
Down
  1. 1. force necessary to provide a mass of one kilogram with an acceleration of one metre per second per second.
  2. 2. force that resists the sliding or rolling of one solid object over another.
  3. 3. Wheel that carries flexible rope
  4. 5. a simple machine having a sharp edge which is formed by putting two inclined planes together
  5. 6. The amount of matter contained in the body
  6. 8. The act of turning a screw
  7. 10. Rigid Pivot bar
  8. 11. for every force in nature there is an equal and opposite reaction
  9. 12. strength or energy as an attribute of physical action or movement.