Across
- 2. ________________ development is development that meets the needs of the present without compromising the ability of future generations to meet their own needs.
- 5. The unit for electrical power is the _________
- 8. the _____________-____________ is the energy used when 1 kilowatt of power is used for 1 hour
- 9. ________ cells generate electricity by converting sunlight into electrical energy through the photovoltaic effect.
- 11. Electrical _________ is the amount of electrical energy changed to other forms of energy in one second.
- 12. you can make a wire _________ by wrapping a copper wire around a pencil.
Down
- 1. sometime you see a unit called the __________ , which is 1000 watts.
- 3. to generate electricity the moving steam turns the blades of a __________ generator
- 4. _________ energy generates electricity by using the Earth's internal heat to produce steam, which spins the blades of a turbine generator.
- 6. to generate electricity move a __________ back and forth near a wire coil
- 7. _________ fuels generates electricity by producing heat through fission, which creates steam that spins turbines connected to generators.
- 10. __________ fuels generate electricity by changing energy from one form to another. They store chemical energy, which converts to heat energy when they burn.