Across
- 2. / quantity of matter
- 4. / an object initially propelled by a force outside itself and keeps moving
- 5. / any physical quantity that is defined by size and direction
- 6. fall / an object is free-falling when only gravity is the force pulling it down
- 7. / an attractive force between two objects in the universe
- 9. energy / the energy an object has by virtue of its position in a force field like gravity (stored energy)
- 10. / the tendency of objects to resist changes in speed or direction of motion
Down
- 1. / refers to size of a vector
- 3. / measure of how fast velocity is changing; time rate of change
- 8. / the speed and direction of motion