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Mass, Weight, Density and Pressure

Quick questions on Pressure and pressure in liquids explained: O-Level Physics

5short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What are pressure in liquids?
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A liquid exerts pressure on any surface in contact with it. This pressure:
What is the liquid column relationship?
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The pressure due to a column of liquid of height (depth) hh is:
What is q1?
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A force of 200 N200\ \text{N} acts on an area of 0.50 m20.50\ \text{m}^2. Calculate the pressure. [2 marks]
What is q2?
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Find the pressure at the bottom of a 5.0 m5.0\ \text{m} deep pool of water (ρ=1000 kg m−3\rho = 1000\ \text{kg m}^{-3}, g=10 N kg−1g = 10\ \text{N kg}^{-1}). [2 marks]
What is q3?
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Explain why pressure in a liquid increases with depth. [2 marks]

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