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Approximation Methods

Can the thick...

Question

Can the thickness of a metal wire be measured using a scale?
Explain. (4 marks)

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Solution

Yes, we can measure the thickness of a metal wire using a scale. (1 mark)

Take a certain length of metal wire and wind it tightly around a pencil. Count the number of winds. (1 mark)

Measure the length of the wound part of the pencil. (1 mark)

Thickness of metal wire = (Length of the wound part)/(Total number of winds) (1 mark)

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