This key facts covers Key Facts 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 2 of 6 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Key Facts
| Formula | Pressure = Force ÷ Area |
| Triangle | P = F/A, F = P×A, A = F/P |
| Units | N/m² (also called Pascals, Pa) or N/cm² |
| Key Fact | 1 Pa = 1 N/m² |
| Remember | Same force, smaller area = MORE pressure |
Practice questions for Pressure
Which formula correctly defines pressure?
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.
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!