Answers to AQA GCSE Nuclear Fusion
Practice Questions
1. State the definition of nuclear fusion
Nuclear fusion is the joining of two light nuclei to form a heavier nucleus.
2.Explain the origin of energy that is released from stars
During nuclear fusion, there is a change in mass, which corresponds to a change in energy
3. Why do experimental fusion reactors currently use more energy than they can release?
The nuclei during fusion repel. It takes a lot of energy to overcome this repulsion. So, on Earth, more energy is used to raise the temperature to allow the fusion to occur than energy released, during the fusion process.
Absorption and Emission of EM Radiation
JJ Thomson and Plum pudding model
Ernest Rutherford and the Nuclear Model
Niels Bohr changing the Nuclear Model
Discovering the Proton and Neutron
Measuring radiation from radioactivity
Radiation types and properties
Random nature of radioactive decay
Radioactive contamination or irradiation
Hazards of contamination and irradiation
Studies on the effects of radiation on humans
Different half lives of radioactive isotopes
Nuclear Fission Chain Reaction
Writing nuclear fission equations