An atmospheric research probe on Mars measures the atmospheric pressure at the surface of a deep basin to be 750 Pa. As it climbs to the rim of the basin at an altitude of 3800 m, the measured atmospheric pressure decreases to 490 Pa.
Calculate the percentage change in atmospheric pressure from the basin floor to the rim.
Give your answer to 2 significant figures.
54 exam-style questions on Edexcel GCSE Physics 15.2 Pressure in fluids, covering 15.2.1 Atmospheric pressure and height, 15.2.2 Pressure in fluids, 15.2.3 Pressure, force and area, 15.2.4 Pressure and depth, 15.2.5 Pressure in liquids: depth and density, 15.2.6 Upthrust, and 15.2.7 Floating and sinking. Each one has a worked solution and a mark scheme showing where the marks go.