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Modelling assumptions & SI units
36 questions
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In mechanics, explain what is meant by modelling a body as a "particle", and give one advantage of doing so.
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Level 2
2 marks
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A string is modelled as "light and inextensible". State what each of these assumptions means.
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Level 2
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State what is meant by modelling a surface as "smooth", and how this affects the forces in a problem.
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Level 2
2 marks
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