simple machines

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Across
  1. 1. A wheel with a groove around the edge, used with a rope or chain to change the direction of force and make lifting easier.
  2. 5. application of strength to move an object or change its state of motion.
  3. 7. A simple machine shaped like a cone or triangle, used for splitting or cutting.
  4. 8. A basic device that makes work easier by using force to move something.
  5. 9. A turning or spinning movement.
Down
  1. 2. To make something move upwards, often against gravity.
  2. 3. The act of moving something from one place to another.
  3. 4. A device that pivots on a fixed point called a fulcrum, used to lift or move heavy objects.
  4. 6. A straight, slanted surface that reduces the force needed to move an object up or down.
  5. 7. A round object that revolves around an axle, used for reducing friction and making movement easier.