Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Solids, Liquids and Gases
279 practice questions
Topics covered
Practice questions
121–130 of 279
Question 121
2 marks · Easy
Answer and see the solution →State the equation that links pressure difference, height, density, and gravitational field strength. Explain what each symbol means.
Question 122
1 mark · Easy
Answer and see the solution →Which change would reduce the pressure difference between two points in a liquid, all else staying the same?
- A.Increase the depth between points
- B.Decrease the density of the liquid
- C.Increase the gravitational field strength
- D.Use a wider tank
Question 123
3 marks · Easy
Answer and see the solution →A storage tank contains orange juice to a depth of 1.5 m. The density of orange juice is 1050 kg/m³. Take g = 10 N/kg.
(a)[1 mark]State the equation for the pressure difference between the surface and the bottom of the tank.
(b)[2 marks]Calculate the pressure difference between the surface and the bottom.
Question 124
2 marks · Easy
Answer and see the solution →- Milk
- 1030 kg/m³
- Kerosene
- 810 kg/m³
- Seawater
- 1025 kg/m³
Density of Liquids
Which of the three liquids would create the greatest pressure at a depth of 2 m? Justify your answer.
Question 125
2 marks · Easy
Answer and see the solution →Explain why the area of the base does not change the pressure difference between two points at different depths in a liquid.
Question 126
2 marks · Easy
Answer and see the solution →A container is filled with glycerol to a height of 2.0 m. The density of glycerol is 1260 kg/m³. Take g = 10 N/kg. What is the pressure difference between the top and the bottom of the glycerol?
Question 127
3 marks · Easy
Answer and see the solution →A column of treacle is 0.80 m high in a tube. The density of treacle is 1420 kg/m³, and g = 10 N/kg.
(a)[1 mark]Write the equation for the pressure difference across the treacle.
(b)[2 marks]Calculate the pressure difference between the top and bottom of the column.
Question 128
3 marks · Normal
Answer and see the solution →A diver is swimming at a depth of m below the surface of freshwater. The density of freshwater is . The gravitational field strength is .
(a)[2 marks]Calculate the pressure difference between the diver and the water surface.
(b)[1 mark]State the relationship used to calculate the pressure difference in this situation.
Question 129
3 marks · Normal
Answer and see the solution →A tank is filled with oil to a depth of m. The density of the oil is . Take gravitational field strength as .
Calculate the pressure difference between the top and the bottom of the tank.
Question 130
2 marks · Normal
Answer and see the solution →Explain why the pressure at the bottom of a swimming pool is greater than at the surface. Refer to molecules and the pressure-depth relationship.