Across
- 4. the particles in a gas are usually molecules or_______
- 5. standard atmosphere
- 8. results from collisions of atoms and molecules in air with objects
- 9. all matter consists of tiny particles that are in constant motion
- 10. refers to motion
- 11. the aimless path the molecules take
Down
- 1. results from the force exerted by a gas per unit surface area of an object
- 2. device used to measure atmospheric pressure
- 3. empty space with no particles or pressure
- 4. there is no lower temperature then this
- 6. SI unit of pressure
- 7. energy an object has because of its motion