Across
- 3. energy radiant energy emitted by the sun
- 6. the branch of physics or technology concerned with the mechanical properties of gases
- 11. the term referring to electricity generated by hydropower
- 12. one of a set of toothed wheels that work together to alter the relation between the speed of a driving mechanism
- 13. energy the energy released during nuclear fission or fusion, especially when used to generate electricity
Down
- 1. energy a form of hydropower that converts the energy of tides into useful forms of power
- 2. energy heat energy generated and stored in the Earth
- 4. advantage the ratio of the force produced by a machine to the force applied to it, used in assessing the performance of a machine
- 5. energy flow through wind turbines to mechanically power generators for electric power
- 7. strength or energy as an attribute of physical action or movement
- 8. activity involving mental or physical effort done in order to achieve a purpose or result
- 9. a rigid bar resting on a pivot, used to help move a heavy or firmly fixed load with one end when pressure is applied to the other
- 10. energy renewable energy source from living or recently living plant and animal materials which can be used as fuel