Learning objectives
Define pressure as force per unit area, use p = F/A and give the unit as the pascal (N/m²)
Explain everyday situations where pressure is increased or reduced by changing the force or the contact area, such as sharp knives, drawing pins and wide skis
Describe qualitatively how the pressure below the surface of a liquid increases with depth and with the density of the liquid
Calculate the change in pressure with depth in a liquid using Δp = ρgΔh (Extended)
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