GCSE Physics 7 – Radioactivity & Particles




Radioactivity refers to the particles/energy which are emitted from nuclei as a result of nuclear instability.

Because the nucleus experiences the intense conflict between the two strongest forces in nature, the electromagnetic force that makes atoms stick together to form molecules and the strong nuclear force that holds the nucleus together, it should not be surprising that there are many nuclear isotopes which are unstable and emit some kind of radiation.

The most common types of radiation are called alpha, beta, and gamma radiation.

The first three modules each have an assessment topic which you can use to check your understanding of the module’s content. You need to achieve the pass mark in each of these in order to attempt the final assessment. You can, however, try each of these assessments as many times as you wish.

(NOTE: Whilst this course is based on the Edexcel IGCSE syllabus, the bulk of its content is applicable to other IGCSE and GCSE curricula. It is a useful course for anyone who needs some additional input, delivered in a different way and with some questions to try!)


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