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Direct and Inverse Proportion

Direct and Inverse Proportion

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Question 13
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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

  1. GCSE
  2. /Maths
  3. /Direct and Inverse Proportion

50 exam-style questions on AQA GCSE Maths Direct and Inverse Proportion. Each one has a worked solution and a mark scheme showing where the marks go.

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