crossword

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Across
  1. 1. a simple machine that has a grooved wheel that holds a rope or a cable
  2. 4. advantage:is the number of times the machine multiplies the input force
  3. 6. is the fixed point
  4. 7. Plane:is a simple machine that is a straight slanted surface
  5. 9. efficiency:is a comparison of a machine’s work output with the work input
  6. 10. the ability to do work
  7. 11. and Axle:is a simple machine that is made of a wheel connected to a smaller cylinder object the axle
  8. 12. the use of force to move an object
Down
  1. 1. energy:is the energy an object has because of its position,condition,or chemical composition
  2. 2. rate at which work is done
  3. 3. any device that helps people do work by changing the way work is done
  4. 4. energy:is the energy possessed by an object due to its motion and position
  5. 5. a simple machine that has a bar that pivots at a fixed point
  6. 8. energy:is the energy of motion