4:5

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Across
  1. 2. The point that the lever rests on
  2. 3. inclined at an horizontal angle
  3. 5. A sharp piece of metal
  4. 7. heavy weights
Down
  1. 1. machine consisting of two or more machines
  2. 4. A rigid bar used to help move heavy objects
  3. 6. A wheel used to raise
  4. 7. can be a piece of wood, metal etc.