Year 10 Physics Assignment
By Valerie Bogdantsova

1. a) radiation~ The spontaneous decay or disintegration of an unstable atomic nucleus accompanied by the emission of radiation.
b) nuclear energy~ Energy released when atomic nuclei undergo a nuclear reaction such as the spontaneous emission of radioactivity, nuclear fission, or nuclear fusion.
c) background radiation~ relatively constant low-level radiation from environmental sources such as building materials, cosmic rays, and ingested radionucleides in the body.
d) nuclear fission~ Atomic nuclear processes which involve the splitting of nuclei with the accompanying release of energy.
e) nuclear fusion~ The nuclear process whereby several small nuclei are combined to make a larger one whose mass is slightly smaller than the sum of the small ones.

2. Two types of nuclear reactions can produce nuclear energy. Nuclear fusion is a process in which two light nuclei combine to form a single heavier nucleus. Nuclear fission is......

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Title: Miss
Approximate Word Count: 587
Approximate Pages: 3 (250 words per double-spaced page)

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