FOT crossword puzzle

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Across
  1. 3. A rigid bar resting on a pivot.
  2. 4. A simple machine that looks like a piece of pizza.
  3. 6. Another word for counterbalance.
  4. 11. Angle between a reference line on a body and the vector representing the relative motion between the body and the fluid through which it is moving.
  5. 12. Thinking of an idea.
  6. 15. An increase in the rate of speed of an object.
Down
  1. 1. A metal pin that must be screwed into an object with a drill or screwdriver.
  2. 2. A flexible strap or belt used in the form of a loop to support or raise a weight.
  3. 5. A science that is concerned with the architecture of engines, machines, or structures.
  4. 7. Strengthening something.
  5. 8. A flat surface, also a way of transportation.
  6. 9. Where the lever rest or is supported on and can pivot.
  7. 10. Mass per unit volume.
  8. 13. Moment of force is the tendency of a force to rotate an object about an axis, fulcrum, or pivot.
  9. 14. A plan or drawing.