Across
- 3. an influence (as a push or pull) that tends to produce a change in the speed or direction of motion of something
- 6. a form of plague that is spread especially from rats to humans by fleas and is marked by chills, fever, weakness, and buboes
- 9. at the first or beginning
- 10. a body hung from a fixed point so as to swing freely back and forth under the action of gravity
- 11. quickness of motion
- 12. the force that acts when two surfaces rub together
- 14. energy at rest
Down
- 1. of a body that is caused by its mass and its motion
- 2. the force that makes objects pull toward each other
- 4. the rate of change in speed over time
- 5. the energy used when a force is applied over a given distance
- 7. a science that deals with matter and energy and their actions upon each other
- 8. energy in motion
- 13. the tendency of an object to resist change in motion