Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Solids, Liquids and Gases
279 practice questions
Topics covered
Practice questions
61–70 of 133 · Easy
Question 61
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 62
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 63
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 64
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 65
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 66
4 marks · Easy
Answer and see the solution →A container is filled with oil up to a height of 0.25 m. The density of oil is 900 kg/m³.
(a)[2 marks]Calculate the pressure due to the oil at the bottom of the container (use g = 10 N/kg).
(b)[1 mark]State one difference (with reason) between the pressure just below the surface and at the bottom of the oil.
(c)[1 mark]Explain why the pressure caused by the liquid is the same in all directions at the same depth.
Question 67
4 marks · Easy
Answer and see the solution →A student wants to find the density of a small stone. She measures the mass of the stone as 45 g, and the volume of water displaced by the stone is 16 cm³.
(a)[1 mark]State the equation used to calculate density.
(b)[1 mark]Calculate the density of the stone in g/cm³.
(c)[1 mark]Explain why the student used water displacement to measure the volume.
(d)[1 mark]If the stone is placed at the bottom of a container and rests on an area of 3.0 cm², calculate the pressure it exerts on the bottom (in Pa). (Take g = 10 N/kg.)
Question 68
1 mark · Easy
Answer and see the solution →Give the scientific term for the energy required to raise the temperature of 1 kg of a substance by 1 °C.
Question 69
2 marks · Easy
Answer and see the solution →State one property of liquids that is also true for gases, and one property that is different between liquids and gases.
Question 70
3 marks · Easy
Answer and see the solution →The diagram below shows particles in one of the three states of matter.
Arrangement of particles (a)[1 mark]Identify the state of matter shown.
(b)[2 marks]Describe the arrangement of the particles in this state.