Pearson Edexcel International GCSE (9–1) · PHYSICS · Section
Pressure and depth
15 practice questions
Practice questions
11–15 of 15
Question 11
1 mark · Normal
Answer and check →Which row correctly shows the combination that would give the greatest pressure at the bottom of a liquid column, according to ?
- A.High h, low ρ, low g
- B.Low h, high ρ, low g
- C.Low h, low ρ, high g
- D.High h, high ρ, high g
Question 12
3 marks · Normal
Answer and see the solution →A student makes a homemade water barometer. The atmospheric pressure supports a column of water 10.0 m high. The density of water is 1000 kg/m³ and g = 10 N/kg.
(a)[2 marks]Calculate the pressure the atmosphere is applying to the water.
(b)[1 mark]State one reason why mercury is often used in barometers instead of water.
Question 13
4 marks · Normal
Answer and see the solution →The table gives data about liquid Y at different depths.
Depth / m Pressure difference / Pa 1.0 8500 2.0 17000 3.0 25500 (a)[3 marks]Calculate the density of liquid Y. Take g = 8.5 N/kg.
(b)[1 mark]Describe the relationship between depth and pressure difference in liquid Y.
Question 14
3 marks · Normal
Answer and see the solution →Describe an experiment you could carry out to show that the pressure in a liquid increases with depth. You may draw a diagram if it helps your description.
Question 15
2 marks · Normal
Answer and see the solution →Describe why the air pressure is less at the top of a mountain than at sea level.