Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Solids, Liquids and Gases
279 practice questions
Topics covered
Practice questions
11–20 of 133 · Easy
Question 11
2 marks · Easy
Answer and see the solution →Explain why a person lying flat on thin ice is less likely to fall through than a person standing, even if their mass is the same.
Question 12
1 mark · Easy
Answer and see the solution →State the equation linking pressure, force, and area using standard symbols.
Question 13
1 mark · Easy
Answer and check →Which of these objects would exert the greatest pressure on a soft surface if the force is 350 N for each case?
- A.A 0.5 m² shoe
- B.A 0.2 m² boot
- C.A 1.0 m² flat board
- D.A 2.0 m² mattress
Question 14
2 marks · Easy
Answer and see the solution →A book with a weight of 40 N rests on a flat table. If the area of contact is 0.08 m², calculate the pressure the book exerts on the table.
Question 15
2 marks · Easy
Answer and see the solution →Give two changes that would increase the pressure exerted by a person standing on the ground.
Question 16
2 marks · Easy
Answer and see the solution →A student places a brick weighing 60 N flat on the ground.
(a)[1 mark]The area of contact is 0.15 m². Calculate the pressure exerted by the brick on the ground.
(b)[1 mark]If the student stands the brick on its end, the area of contact becomes 0.05 m², but the weight is unchanged. Explain what happens to the pressure and why.
Question 17
2 marks · Easy
Answer and see the solution →A block has a mass of 10 kg and is placed on the ground, covering an area of 0.02 m². Calculate the pressure the block exerts on the ground. (Take gravitational field strength ).
Question 18
1 mark · Easy
Answer and check →Which of the following will increase the pressure at the bottom of a liquid tank?
- A.Increasing the depth of the liquid
- B.Decreasing the density of the liquid
- C.Decreasing the gravitational field strength
- D.Decreasing the area of the tank base
Question 19
3 marks · Easy
Answer and see the solution →A science teacher uses a can with small holes around the sides and fills it with water to demonstrate liquid pressure.
(a)[1 mark]Describe what you would observe as water flows out of the holes when the can is full.
(b)[2 marks]Explain what this demonstrates about pressure in liquids.
Question 20
2 marks · Easy
Answer and see the solution →Calculate the pressure 5 metres below the surface of a swimming pool. (Density of water , ).