The Energy-Generating Wheel

3. the ability to achieve maximum output with minimum wasted energy or effort.
5. the strength or ability of something to withstand wear, pressure, or damage over time.
11. the circular movement of an object, such as a wheel turning around its axle.
12. the resistance between two surfaces when they move against each other.
13. the ability of a material to carry or transmit electricity.
14. energy that comes from sources which naturally replenish, like sunlight or motion.
15. a system of moving parts that work together to perform a specific function.
18. the flow of electric charge through a circuit or conductor.
19. a new idea, device, or method that brings improvement or solves a problem.
20. relating to heat or temperature, often generated by friction during motion.

1. a device that produces electricity from mechanical or thermal energy.
2. small, repeated movements that can be converted into electrical energy.
4. a part or element of a larger mechanical or electrical system.
6. environmentally friendly and able to be maintained over time without depletion.
7. the force or factor that reduces energy flow or slows movement.
8. the force that causes rotation, especially in a wheel or axle system.
9. the process of changing energy from one form to another (e.g. heat into electricity).
10. a closed loop through which electricity flows.
16. the act of collecting energy from a source such as motion or heat.
17. the stored electrical energy in a battery or energy system.