Weight = mass x Gravitational accelerationMass = (kg) Dencity = Mass/Volume Volume = height x area Pressure = (Pa or nm⁻²) Pressure Solid = F/A Pressure Liquid = h x ρ x gh=heightρ = Densityg = gravitational acceleration*Example: – 2m x 1000Kg m⁻³ x 10ms⁻² 1Kg=10N10N=1KgKgxg=N (g=10ms⁻²) 400N=40G