This lesson covers the following specification points from the AQA A level Physics specification:
3.2.1.4 Particle interactions
Four fundamental interactions: gravity, electromagnetic, weak nuclear, strong nuclear.
The concept of exchange particles to explain forces between elementary particles.
The electromagnetic force; virtual photons as the exchange particle.
The weak interaction limited to Beta decays, electron capture and electron–proton collisions; W bosons as the exchange particles.
Simple diagrams to represent the above reactions or interactions in terms of incoming and outgoing particles and exchange particles.
The lesson also includes AQA multiple choice exam questions to embed exam practice.
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