Across
- 2. - a course along which someone or something moves
- 9. - distance and direction of an object's change in position from the starting point
- 11. - a system of objects that are not moving with respect to one another
- 12. - a quantity that has magnitude and direction
Down
- 1. - negative acceleration
- 3. - the force of attraction between objects that is due to their masses
- 4. - the rate of change of velocity
- 5. - the amount of space between two things or people
- 6. - speed of an object in a particular direction
- 7. - a quantity that has a magnitude only
- 8. - an object's change in position relative to a reference point
- 10. - distance an object travels per unit of time