Renewable Energy Resources_ Part 2 _ GCSE Physics

The video discusses geothermal and solar energy. Geothermal energy is derived from radioactive decay heating rocks, which can heat water to produce steam for electricity generation. It is environmentally friendly but geographically limited. Solar energy uses cells to convert light into electricity, suitable for remote areas but currently costly and inefficient. However, solar technology is becoming more affordable over time.

What process is used to generate energy from hot rocks in geothermal energy?

What are the advantages of using geothermal energy?

What challenges exist in exploiting geothermal energy in most parts of the world?

How do solar cells convert energy, and what is a significant drawback of their use?

What is the future outlook for the cost of solar energy according to the text?