Simple Machines

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Across
  1. 4. a plane inclined at an angle to the horizontal.
  2. 8. the force exerted on an object by a simple machine
  3. 9. a machine made up of two or more simple machines that make your work easier to do.
Down
  1. 1. 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 t
  2. 2. a simple machine that is composed of a large circular object called a wheel and a smaller cylindrical rod known as the axle
  3. 3. a short, slender, sharp-pointed metal pin with a raised helical thread running around it and a slotted head, used to join things together by being rotated so that it pierces wood or other material and is held tightly in place.
  4. 5. the force you apply to the machine,
  5. 6. any of the basic mechanical devices for applying a force, such as an inclined plane, wedge, or lever.
  6. 7. 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.
  7. 10. a wheel with a grooved rim around which a cord passes. It acts to change the direction of a force applied to the cord and is chiefly used (typically in combination) to raise heavy weights.