Investigating Pressure is a free interactive simulation for GCSE Physics (Edexcel IGCSE 4PH1) in which students adjust the force and contact area to see how pressure changes, investigating how pressure depends on both force and area. No login required — includes a worksheet and self-marking quiz.

Aim: To investigate how pressure depends on the force applied and the area it acts over.

Each square = 1 cm × 1 cm — Count the squares inside the outline

Results

Subject Mass (kg) Force (N) Area (cm²) Pressure (N/cm²) Validation Actions


Pressure = Force ÷ Area

Force (N) = mass (kg) × 10 (N/kg) gravitational field strength on Earth

Area (cm²) = total area of all feet

Pressure (N/cm²)

Same force on smaller area = higher pressure.