Simple Machines
Across
- 3. strength or energy as an attribute of physical action or movement.
- 5. an effort must overcome order to do work frictional forces of air against moving objects
- 7. the point on which a lever rests or is supported and on which it pivots.
- 8. a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained.
- 11. the ratio of the force produced by a machine to the force applied to it, used in assessing the performance of a machine.
- 12. force applied with distance
- 14. any of the basic mechanical devices for applying a force, such as an inclined plane, wedge, or lever.
Down
- 1. applied at one point on the lever in order to move an object, known as the resistance force, located at some other point on the lever.
- 2. the variable that the scientist changes
- 4. the variable (outcome) that depends on the what the scientist does to change the experiment
- 6. A machine consisting of two or more simple machines operating together
- 9. the secondary or vertical axis of a system of coordinates, points along which have a value of zero for all other coordinates.
- 10. a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
- 13. the principal or horizontal axis of a system of coordinates, points along which have a value of zero for all other coordinates.
- 15. a generalized rule to explain a body of observations in the form of a verbal or mathematical statement