P3 Flashcards
1
Q
where does geothermal energy come from
A
radioactive substances deep inside the earth. energy transferred from radioactive substances heats surrounding rock so energy is transferred by heating towards earth’s surface
2
Q
what is the difference between a solar cell panel and a solar heating panel
A
a solar cell panel uses sunlight to make electricity but a solar heating panel uses the sunlight to heat water
3
Q
what are advantages of nuclear power
A
no greenhouse gases
more energy is transferred from each kg of uranium or plutonium than with fossil fuels
4
Q
what are disadvantages of nuclear power
A
used fuel rods contain radioactive waste which has to be stored safely
an explosion in a reactor could release radioactive material over a wide area
