Across
- 2. strength or energy as an attribute of physical action or movement.
- 4. the branch of physics or technology concerned with the mechanical properties of gases.
- 8. a form of energy generated by the conversion of free-falling water to electricity
- 9. energy radiant energy emitted by the sun.
- 10. advantage the ratio of the force produced by a machine to the force applied to it, used in assessing the performance of a machine.
- 13. one of a set of toothed wheels that work together to alter the relation between the speed of a driving mechanism
Down
- 1. energy the energy released during nuclear fission or fusion, especially when used to generate electricity.
- 3. energy thermal energy generated and stored in the Earth
- 5. energy the process by which wind is used to generate electricity
- 6. energy organic material that comes from plants and animals, and it is a renewable source of energy
- 7. energy hydropower that converts the energy of tides into useful forms of power – mainly electricity
- 11. 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.
- 12. activity involving mental or physical effort done in order to achieve a purpose or result.