energy power and mechanics

2. of a set of toothed wheels that work together to alter the relation between the speed of a driving mechanism (such as the engine of a vehicle or the crank of a bicycle) and the speed of the driven parts (the wheels).
5. 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.
7. energy-the energy released during nuclear fission or fusion, especially when used to generate electricity.
9. is the term referring to electricity generated by hydropower; the production of electrical power through the use of the gravitational force of falling or flowing water.
10. energy- a renewable energy source from living or recently living plant and animal materials which can be used as fuel
11. energy-a form of hydropower that converts the energy of the tides into electricity or other useful forms of power.
12. energy-radiant energy emitted by the sun
13. energy- form of energy conversion in which turbines convert the kinetic energy of wind into mechanical or electrical energy that can be used for power

1. branch of physics or technology concerned with the mechanical properties of gases.
3. involving mental or physical effort done in order to achieve a purpose or result.
4. energy- heat energy generated and stored in the Earth.
6. or energy as an attribute of physical action or movement.
8. advantage-the ratio of the force produced by a machine to the force applied to it, used in assessing the performance of a machine.