P3.3 Power from the sun and the earth Flashcards
1
Q
How do solar heating panels work?
A
The water in the tank is turned to steam by the heating effect of the radiation
Steam is piped down to ground level where it turns electricity generators
2
Q
What is geothermal energy?
A
Energy that comes from radioactive substances deep within the Earth
3
Q
How does geothermal power stations work?
A
Energy transferred from these radioactive substances heats the surroundings rock
Water gets pumped down to the rocks to produce steam - which drives electricity turbines
4
Q
What is ground source heat?
A
Heat flow from underground
5
Q
What are solar cells?
A
Flat solid cells and use the Sun’s energy to generate electricity directly
