Simple Machines

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Across
  1. 2. A supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation
  2. 6. A machine consisting of two or more simple machines operating together
  3. 8. Supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained
  4. 10. The force an effort must overcome order to do work
  5. 11. The point on which a lever rests or is supported and on which it pivots
  6. 14. The variable that you change
Down
  1. 1. The variable that you record as the result
  2. 3. Activity involving mental or physical effort done in order to achieve a purpose or result
  3. 4. A statement of fact, deduced from observation, to the effect that a particular natural or scientific phenomenon always occurs if certain conditions are present
  4. 5. The ratio of the force produced by a machine to the force applied to it, used in assessing the performance of a machine
  5. 7. any of the basic mechanical devices for applying a force, such as an inclined plane, wedge, or lever
  6. 9. Work that you do to move an object
  7. 12. The secondary or vertical axis of a system of coordinates, points along which have a value of zero for all other coordinates
  8. 13. The principal or horizontal axis of a system of coordinates, points along which have a value of zero for all other coordinates