Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Solids, Liquids and Gases
279 practice questions
Topics covered
Practice questions
91–100 of 279
Question 91
1 mark · Easy
Answer and see the solution →Object Force (N) Area (m²) A 400 0.8 B 300 0.5 C 200 0.2 D 600 2.0 Which object exerts the greatest pressure on the ground?
- A.A
- B.B
- C.C
- D.D
Question 92
1 mark · Easy
Answer and see the solution →Give one example of how understanding pressure under a solid is useful in everyday life.
Question 93
2 marks · Easy
Answer and see the solution →A brick weighing 120 N rests flat on the ground with one face of area 0.3 m². Calculate the pressure it exerts on the ground.
Question 94
1 mark · Easy
Answer and see the solution →A metal spike is driven into the ground with a force. Explain why its pointed end helps it go in more easily.
Question 95
2 marks · Easy
Answer and see the solution →(a)[1 mark]Write the equation linking pressure, force and area. Use standard symbols.
(b)[1 mark]What is the pressure produced by a force of 50 N acting on an area of 0.25 m²? Show your working.
Question 96
1 mark · Normal
Answer and see the solution →State the equation linking pressure, force and area for a solid surface. Use standard symbols.
Question 97
2 marks · Normal
Answer and see the solution →A student pushes a box with a force of 180 N onto the floor. The area of contact between the box and the floor is 0.6 m². Calculate the pressure exerted by the box on the floor.
Question 98
3 marks · Normal
Answer and see the solution →A metal plate rests on soft ground. The plate has a weight of 600 N and covers an area of 0.75 m².
(a)[2 marks]Calculate the pressure the plate exerts on the ground. Give your answer in Pa.
(b)[1 mark]Explain how the pressure would change if the area of the plate were halved, but the weight stayed the same.
Question 99
2 marks · Normal
Answer and see the solution →Explain, using the pressure equation, why a sharp knife is easier to use for cutting than a blunt knife.
Question 100
3 marks · Normal
Answer and see the solution →Describe a practical method for measuring the pressure that a student's shoe exerts on the ground.