Simple Machines

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Across
  1. 2. a nail-shaped or rod-shaped piece with a spiral groove and a slotted
  2. 5. a rigid bar resting on a pivot,used to help move a heavy or firmly fixed load with one end when pressure is applied to the other.
  3. 7. a the point on which a lever rests or is supported and on which it pivots.
  4. 8. a piece of wood, metal, or some other material having one thick end and tapering to a thin edge, that is driven between two objects or parts of an object to secure or separate them.
Down
  1. 1. a strength or energy as an attribute of physical action or movement.
  2. 3. and axle a type of simple machine used to make tasks easier in terms of manipulating force by applying the concept of mechanical advantage
  3. 4. Plane a type of simple machine used to make tasks easier in terms of manipulating force by applying the concept of mechanical advantage
  4. 6. a wheel with a grooved rim around which a cord passes.