Across
- 3. energy Energy that is made from sources that can be regenerated. Sources include solar, wind, geothermal, biomass, ocean and hydro (water).
- 5. energy The energy of motion. For example, a spinning top, a falling object and a rolling ball all have kinetic energy. The motion, if resisted by a force, does work. Wind and water both have kinetic energy.
- 7. The rotating part of an electrical or mechanical device.
- 8. energy Potential energy is the energy stored by an object as a result of its position. A roller coaster at the top of a hill has potential energy.
- 10. energy energy that can be used to do work. It is the sum of an object's kinetic and potential energy.
Down
- 1. A machine in which the kinetic energy of a moving fluid is converted into mechanical energy by causing a series of buckets, paddles or blades on a rotor to rotate.
- 2. A device that transforms mechanical energy into electrical energy.
- 4. An instrument that measures electromotive force in units called volts.
- 6. energy Energy that exists when charged particles attract or repel each other. Television sets, computers and refrigerators use electrical energy. energy: The ability to do work.
- 9. turbine A machine that converts the moving energy of wind into mechanical and/or electrical energy.
- 11. The center part of a wheel, fan or propeller.