Direct and Inverse Proportion
31
Medium
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The sound intensity, SSS, from a speaker is inversely proportional to the square of the distance, r r\,r m, from the speaker.

S S\,S is given by the formula: S=144r2\displaystyle S = \frac{144}{r^2}S=r2144​

Find the sound intensity when the speaker is 6 m away.

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Direct and Inverse Proportion Questions

Practise Eduqas GCSE Maths Direct and Inverse Proportion with exam-style questions for Foundation and Higher tier. 96 questions, matched to the Eduqas GCSE Maths (C300QS) specification and written in Component 1 and Component 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

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Direct and Inverse Proportion Questions

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