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Direct and Inverse Proportion

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Question 49

The force, $F$ , between two magnets is inversely proportional to the square of the distance, $x\,$ cm, between them.

$F\,$ is given by the formula: $F=kx2\displaystyle F = \frac{k}{x^2}$ , where $k\,$ is a constant.

Find the Force when two magnets are 3 cm apart. Give your answer in terms of $k$ .

[2]

Markscheme

Direct and Inverse Proportion Questions

GCSE
Maths
Direct and Inverse Proportion

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

Direct and Inverse Proportion

Question bank

Direct and Inverse Proportion

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Question 49

The force, $F$ , between two magnets is inversely proportional to the square of the distance, $x\,$ cm, between them.

$F\,$ is given by the formula: $F=kx2\displaystyle F = \frac{k}{x^2}$ , where $k\,$ is a constant.

Find the Force when two magnets are 3 cm apart. Give your answer in terms of $k$ .

[2]

Markscheme

Direct and Inverse Proportion Questions

GCSE
Maths
Direct and Inverse Proportion

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