Across
- 2. Something that causes the change of motion.
- 5. A statement of facts deduced from an observation.
- 7. force The effort for which it must overcome to complete the work using frictional forces.
- 9. advantage The ratio of a force produced by a machine to the force applied to it.
- 11. machine A machine consisting of two or more simple machines working together.
- 12. The vertical axis of a coordinate graph.
- 13. variable The variable that depends on other factors and is measured (the effect).
- 15. A proposed explanation with limited evidence.
Down
- 1. The amount of energy necessary to move an object.
- 3. force The force required by a machine in order to complete work.
- 4. A point where a lever rests or is supported and pivots on.
- 6. variable The variable that isn't changed by other variable, but the person that controls the experiment.
- 8. machine Any basic mechanical device to apply force or effort, such as inclined planes, screws, wedges, etc.
- 10. The horizontal axis of a coordinate graph.
- 14. A system of ideas intended to explain something.