Across
- 3. energy transferred from one body to another
- 5. refers to how well a machine operates
- 6. allows heat to transfer from cold reservoir to a warmer one
- 7. a device that change thermal energy ti mechanical energy
- 9. heat flows from higher to lower temperature
- 11. a unit to express internal energy
Down
- 1. heat flows from lower to higher temperature
- 2. sum of molecular kinetic energy and molecular potential energy
- 4. brought about by accumulated exhaustion oh heat
- 8. enables you to do work
- 10. no heat enters or leave the system