Energy and work
Across
- 5. The power taken from water
- 6. The percentage of the useful work of input energy of devices
- 7. The problems of thermal power plants
- 12. The steam from the boiler rotates ______ to generate electricity
- 13. Which fuel is used mostly in thermal power plants
- 15. What renewable energy source is from the Earth's interior heat?
- 17. The cause of sulfur dioxide emited by coal-burning power plants
- 18. Energy is transformed to useful and _____ work
- 19. Coal, gas and oil are ______ fuels.
- 21. The part of thermal power plant where the steam is produced
Down
- 1. Efficiency cannot be ______ percent.
- 2. What is the chemical element commonly used in nuclear power plants for generating electricity?
- 3. Electricy is made by _________
- 4. ________ is released to the air and causes air pollution by thermal power plants
- 8. The collection of aerogenerators
- 9. What is the energy stored in the nucleus of an atom called?
- 10. Tidal, wind and solar energies are ______ energies
- 11. What is the process of splitting atoms to release energy called?
- 14. The fuel made by plants or animal matters
- 16. What is the energy associated with the motion of atoms and molecules in a substance called?
- 20. Energy that is not wasted