A pressure sensor in a deep vertical borehole is lowered from a depth of 450 m to a depth of 720 m below the surface. The borehole is completely filled with a dense drilling fluid.
What is the change in hydrostatic pressure measured by the sensor?
Useful information:
3.92×105 Pa3.92 \times 10^5\text{ Pa}3.92×105 Pa
3.84×106 Pa3.84 \times 10^6\text{ Pa}3.84×106 Pa
6.41×106 Pa6.41 \times 10^6\text{ Pa}6.41×106 Pa
1.02×107 Pa1.02 \times 10^7\text{ Pa}1.02×107 Pa
33 exam-style questions on OCR GCSE Physics Pressure. Each one has a worked solution and a mark scheme showing where the marks go.