Across
- 3. a push or pull on an object
- 6. the moment when 2 objects hit each other
- 7. stored energy
- 10. anything that has mass and takes up space
- 11. how fast an object is moving
Down
- 1. a force between an object and the surface its moving over
- 2. a self-contained unit on an aircraft that can be detached
- 4. speed in a particular direction
- 5. energy of motion
- 8. to apply a force
- 9. the amount of matter that makes up an object