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Radioactive Decay And Nuclear Radiation (GCSE Physics)

The following is a GCSE Physics test covering 'Radioactive Decay And Nuclear Radiation' from the broader topic Atomic Structure. The test is geared towards the AQA exam board style syllabus.
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Below a typical questions that will be covered in this test. You final score will be logged on your account

What would be the effect on measured count rate if a thin sheet of aluminium is placed between a beta-emitting source and a GM detector?
What is the main reason nuclear waste with long half-lives is stored deep underground and isolated?
Which definition of the becquerel (Bq) is correct?
Which instrument gives information about the type of radiation (alpha, beta, gamma) by using absorbers of different thicknesses and materials?
Which type of nuclear radiation consists of two protons and two neutrons and is the least penetrating?
Which detector is commonly used to measure count rate from radioactive sources in school experiments?
A graph of count rate versus time for a decaying source shows an exponential decrease. What does the curve’s shape indicate?
Which practice reduces the radiation dose to a person working with radioactive sources?
A radioactive sample has an activity of 240 Bq. After one half-life its activity will be:
What is the difference between irradiation and contamination?
In beta minus decay, what change occurs in the nucleus?