Across
- 2. when two or more objects come into contact
- 3. measure of how fast velocity is changing; time rate of change
- 4. the science of matter and energy and their interactions
- 6. a course along which someone or something moves
- 7. the force that resists motion of one object rubbing against another
- 9. quantity of matter
- 12. an attractive force between two objects in the universe
- 13. any physical quantity that is defined by size and direction
- 14. 0 velocity; not moving
- 15. relating to the motion of material bodies and their forces
- 17. close to the real value
- 18. an educated guess
Down
- 1. the speed and direction of motion
- 4. an object initially propelled by a force outside itself and keeps moving
- 5. a quantity that has a size or magnitude only
- 6. shortest distance from point A to point B
- 7. push or pull
- 8. he tendency of objects to resist changes in speed or direction of motion
- 10. a linear interval of space
- 11. force times distance; work is energy
- 16. a physical quantity of work