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Ratio & ProportionStudy Notes

Worked Example 1: Finding Pressure

Part of Pressure — GCSE Mathematics

This study notes covers Worked Example 1: Finding Pressure within Pressure for GCSE Mathematics. Revise Pressure in Ratio & Proportion for GCSE Mathematics with 12 exam-style questions and 2 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 4 of 5 in this topic. Use this study notes to connect the idea to the wider topic before moving on to questions and flashcards.

Topic position

Section 4 of 5

Practice

12 questions

Recall

2 flashcards

Worked Example 1: Finding Pressure

A force of 200N acts on an area of 0.5m². Calculate the pressure.

Step 1 Write formula

Pressure = Force ÷ Area

Step 2 Calculate

P = 200 ÷ 0.5 = 400 N/m² (or 400 Pa)

Keep building this topic

Read this section alongside the surrounding pages in Pressure. That gives you the full topic sequence instead of a single isolated revision point.

Method: PFA TriangleWorked Example 2: Finding AreaWhat Is Pressure?Key Facts

Practice Questions for Pressure

Which formula correctly defines pressure?

  • A. Pressure = Area ÷ Force
  • B. Pressure = Force × Area
  • C. Pressure = Force ÷ Area
  • D. Pressure = Force + Area
1 markfoundation

A woman weighs 650 N. She wears flat shoes (each with area 150 cm²) or stiletto heels (each with area 1 cm²). She stands on one foot. Explain why the stiletto heel exerts a much greater pressure on the floor than the flat shoe. Support your answer with a calculation.

2 marksstandard

Quick Recall Flashcards

Pressure Applications
Pressure = Force ÷ Area. Sharp knives, stiletto heels, snowshoes - all examples of changing area to change pressure!
Pressure Formula
Pressure = Force ÷ Area. Units: N/m² or Pascals (Pa). Same force over smaller area = MORE pressure!

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Method: PFA Triangle

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Worked Example 2: Finding Area