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15.2 Pressure in fluids

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Question 1

A scientist measures how the total pressure varies with depth below the surface of a freshwater lake.

They plot a graph with total pressure on the yyy-axis and depth on the xxx-axis. Both atmospheric pressure and the pressure due to the water are taken into account.

Which of the following mathematical equations represents how the total pressure varies with depth?

A

y=mxy = mxy=mx

B

y=mx+cy = mx + cy=mx+c

C

y=kxy = \frac{k}{x}y=xk​

D

y=ax2+cy = ax^2 + cy=ax2+c

Markscheme

15.2 Pressure in fluids Questions

  1. GCSE
  2. /Physics
  3. /15.2 Pressure in fluids

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.

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