Nuclear fusion reactions power stars like our Sun.
Complete the following sentences.
Nuclear fusion of tritium is extremely difficult to achieve on Earth because of the high temperature needed.
An electrical heating system is used to increase the temperature of 2.5 g of tritium by 120,000,000 ∘C120,000,000\text{ }^{\circ}\text{C}120,000,000 ∘C.
Calculate the energy needed to increase the temperature of the tritium sample by 120,000,000 ∘C120,000,000\text{ }^{\circ}\text{C}120,000,000 ∘C.
Before building the first commercial nuclear fusion power stations, scientists constructed and tested smaller prototype experimental fusion reactors (models).
Suggest two reasons why these prototype models were developed and tested first.
Explain one environmental advantage of generating electricity using nuclear fusion rather than burning coal.
Practise AQA GCSE Physics Nuclear fission and fusion (physics only) with exam-style questions for Foundation and Higher tier. 10 questions covering Nuclear fission and Nuclear fusion, matched to the AQA GCSE Physics (8463) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.