Solids under stress: Eduqas A‑Level Physics questions
Every Eduqas A-Level Physics exam question on 2.5 Solids under stress, 2016–2025, with its mark scheme and examiner’s report.
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Q5(a)
The whole paper ↗
Q5(b)(i)
The whole paper ↗![June 2025 Component 2, question 5(b)(i): Show that the line for the region AB is consistent with this sample of rubber having a Young modulus of approximately 3 MPa in this region. [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/a420u20-jun25-05-bi-qp.webp)
Q5(b)(ii)
The whole paper ↗![June 2025 Component 2, question 5(b)(ii): Briefly explain the changes in the molecular arrangement in the regions BC and CD. [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/a420u20-jun25-05-bii-qp.webp)
Q5(b)(iii)
The whole paper ↗![June 2025 Component 2, question 5(b)(iii): A student suggests that 1.5 times more work is done in stretching the rubber from C to D than from B to C. Determine whether the student is correct. [3]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/a420u20-jun25-05-biii-qp.webp)
Q5(c)
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Q4(a)
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Q4(b)
The whole paper ↗![June 2025 AS Component 1, question 4(b): A glass fibre of breaking stress 8.11 × 106 Pa just breaks when a mass of 2.6 kg is suspended from it. Determine the diameter of the fibre. [4]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/b420u10-jun25-04-b-qp.webp)
Q4(c)
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Q6(a)(i)
The whole paper ↗![June 2024 Component 2, question 6(a)(i): Sketch a diagram to illustrate the term necking, indicating the direction of the stretching forces. [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/a420u20-jun24-06-ai-qp.webp)
Q6(a)(ii)
The whole paper ↗![June 2024 Component 2, question 6(a)(ii): Explain, in terms of stress, why the metal fractures at this point. [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/a420u20-jun24-06-aii-qp.webp)
Q6(b)(i)
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Q6(b)(ii)
The whole paper ↗![June 2024 Component 2, question 6(b)(ii): The diameter of each wire is 1.4 mm and the unstretched length is 1.2 m. Determine the extension produced in one of the wires when F = 30 N. [3]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/a420u20-jun24-06-bii-qp.webp)
Q6(b)(iii)
The whole paper ↗
Q4(a)(i)
The whole paper ↗![June 2024 AS Component 1, question 4(a)(i): Define the Young modulus of a material. [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/b420u10-jun24-04-ai-qp.webp)
Q4(a)(ii)
The whole paper ↗![June 2024 AS Component 1, question 4(a)(ii): Rubber is a polymer. Describe its structure on a molecular scale. [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/b420u10-jun24-04-aii-qp.webp)
Q4(b)(i)
The whole paper ↗![June 2024 AS Component 1, question 4(b)(i): Explain the shape and gradient of the graph in terms of the molecular behaviour of rubber. [6 QER]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/b420u10-jun24-04-bi-qp.webp)
Q4(b)(ii)
The whole paper ↗![June 2024 AS Component 1, question 4(b)(ii): On the same axes, sketch the graph that would be obtained when unloading the rubber band, assuming it undergoes hysteresis. [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/b420u10-jun24-04-bii-qp.webp)
Q4(b)(iii)
The whole paper ↗![June 2024 AS Component 1, question 4(b)(iii): Explain why hysteresis occurs. [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/b420u10-jun24-04-biii-qp.webp)
Q4(a)(i)
The whole paper ↗![June 2023 Component 2, question 4(a)(i): Inserting a pre-stressed steel bar into the concrete would strengthen the beam. On the diagram, draw a pre-stressed steel bar in an appropriate position. [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/a420u20-jun23-04-ai-qp.webp)
Q4(a)(ii)
The whole paper ↗![June 2023 Component 2, question 4(a)(ii): Explain how the steel bar strengthens the beam. [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/a420u20-jun23-04-aii-qp.webp)
All 87 questions on Solids under stress, as a list
- June 2025, Component 2, Q5(a) (3 marks): Describe a method to investigate the force-extension properties of rubber in the form of an elastic band as it is loaded only. You should describe how the exten
- June 2025, Component 2, Q5(b)(i) (2 marks): Show that the line for the region AB is consistent with this sample of rubber having a Young modulus of approximately 3 MPa in this region. [2]
- June 2025, Component 2, Q5(b)(ii) (2 marks): Briefly explain the changes in the molecular arrangement in the regions BC and CD. [2]
- June 2025, Component 2, Q5(b)(iii) (3 marks): A student suggests that 1.5 times more work is done in stretching the rubber from C to D than from B to C. Determine whether the student is correct. [3]
- June 2025, Component 2, Q5(c) (3 marks): Explain how a car tyre manufacturer might use the term ‘hysteresis’ to advise drivers that driving with under-inflated tyres (tyres below the recommended pressu
- June 2025, AS Component 1, Q4(a) (6 marks): Glass is an example of an amorphous, brittle material. Explain what is meant by an amorphous, brittle material and how glass fractures under tension. Give your
- June 2025, AS Component 1, Q4(b) (4 marks): A glass fibre of breaking stress 8.11 × 106 Pa just breaks when a mass of 2.6 kg is suspended from it. Determine the diameter of the fibre. [4]
- June 2025, AS Component 1, Q4(c) (4 marks): The Young modulus, E, of a material can be given by the equation: E = Fl xA where F = force, l = length, x = extension and A = cross-sectional area. Use this eq
- June 2024, Component 2, Q6(a)(i) (1 mark): Sketch a diagram to illustrate the term necking, indicating the direction of the stretching forces. [1]
- June 2024, Component 2, Q6(a)(ii) (2 marks): Explain, in terms of stress, why the metal fractures at this point. [2]
- June 2024, Component 2, Q6(b)(i) (2 marks): Show that: clamp F titanium 2 F steel where Ftitanium and Fsteel are the respective forces on the steel titanium titanium and steel wires. [Etitanium = 400 GP
- June 2024, Component 2, Q6(b)(ii) (3 marks): The diameter of each wire is 1.4 mm and the unstretched length is 1.2 m. Determine the extension produced in one of the wires when F = 30 N. [3]
- June 2024, Component 2, Q6(b)(iii) (2 marks): A physics student assumes that, since the wires extend by the same amount, they must possess the same amount of elastic potential energy. Determine whether the
- June 2024, AS Component 1, Q4(a)(i) (1 mark): Define the Young modulus of a material. [1]
- June 2024, AS Component 1, Q4(a)(ii) (2 marks): Rubber is a polymer. Describe its structure on a molecular scale. [2]
- June 2024, AS Component 1, Q4(b)(i) (6 marks): Explain the shape and gradient of the graph in terms of the molecular behaviour of rubber. [6 QER]
- June 2024, AS Component 1, Q4(b)(ii) (1 mark): On the same axes, sketch the graph that would be obtained when unloading the rubber band, assuming it undergoes hysteresis. [1]
- June 2024, AS Component 1, Q4(b)(iii) (2 marks): Explain why hysteresis occurs. [2]
- June 2023, Component 2, Q4(a)(i) (1 mark): Inserting a pre-stressed steel bar into the concrete would strengthen the beam. On the diagram, draw a pre-stressed steel bar in an appropriate position. [1]
- June 2023, Component 2, Q4(a)(ii) (2 marks): Explain how the steel bar strengthens the beam. [2]
- June 2023, Component 2, Q4(b)(i) (1 mark): All three steels have the same Young modulus. State how the graphs support this statement. [1]
- June 2023, Component 2, Q4(b)(ii) (3 marks): Compare the physical properties of high carbon steel with low carbon steel and explain these properties in terms of their molecular structure. [3]
- June 2023, Component 2, Q4(c)(i) (4 marks): Use information from the diagram and the following data to show that the extension in the cable is approximately 2 mm. [4] Young modulus of steel = 210 GPa Leng
- June 2023, Component 2, Q4(c)(ii) (2 marks): Calculate the energy stored in the extended cable. [2]
- June 2023, Component 2, Q4(c)(iii) (2 marks): The tugboat operator decides to replace the quenched steel cable with a cable made from low carbon steel of the same length and diameter. Using the graphs in pa
- June 2023, AS Component 1, Q2(a) (6 marks): Copper is a crystalline material. Describe its structure and explain, on a molecular and macroscopic level, what happens to a copper wire when it breaks. [6 QER
- June 2023, AS Component 1, Q2(b)(i) (2 marks): Calculate the stress at its elastic limit. [2]
- June 2023, AS Component 1, Q2(b)(ii) (2 marks): The wire has a Young modulus of 1.3 × 1011 Pa. Calculate the extension at its elastic limit. [2]
- June 2023, AS Component 1, Q2(c) (3 marks): The usual unit for Young modulus is the Pascal (Pa). Express this in terms of SI base units. [3]
- June 2023, AS Component 2, Q6(c) (4 marks): A 1.2 m length of the constantan wire used in part (b) is stretched by a tensile force of 45 N. Determine the Young modulus of constantan if the wire extends by
- June 2022, AS Component 1, Q4(a) (6 marks): Describe an experiment to determine the Young modulus of a metal wire. [6 QER]
- June 2022, AS Component 1, Q4(b)(i) (1 mark): State which of the above materials is the stiffest and which is the least stiff. [1]
- June 2022, AS Component 1, Q4(b)(ii) (3 marks): A force of 80.0 N is applied to a copper wire 2.00 m long. If the diameter is 1.20 mm determine its extension. [3]
- June 2022, AS Component 1, Q5(b)(ii) (3 marks): The shopkeeper decides to use a copper wire of diameter 1.0 mm and breaking stress 3.0 × 108 Pa as the supporting cable. Evaluate whether the sign will be secur
- Autumn 2021, Component 1, Q8(d) (3 marks): Paragraph 8 Read through the following article carefully. Build Your Own Strainmeter in an A-level Physics Classroom The first questions that need answering are
- Autumn 2021, Component 2, Q4(a)(i) (2 marks): Glass is a brittle material. Briefly describe the process by which glass fractures. [2]
- Autumn 2021, Component 2, Q4(a)(ii) (2 marks): Car windscreens are made from pre-stressed glass. During production, jets of air cool the hot glass which causes the outside to contract and harden while the in
- Autumn 2021, Component 2, Q4(b)(i) (3 marks): A glass marble of mass 20 g is securely attached to a thin nylon thread of length 0.30 m and diameter 0.16 mm. Determine the extension of the thread when the ma
- Autumn 2021, Component 2, Q4(b)(ii) (2 marks): The maximum stress that nylon can withstand before breaking is 9.00 × 107 Pa. Determine the breaking force for this thread. [2]
- Autumn 2020, Component 2, Q4(a) (3 marks): Materials can be classified as being crystalline, amorphous or polymeric. Making reference to their microscopic structures explain what is meant by each of thes
- Autumn 2020, Component 2, Q4(b)(i) (3 marks): By referring to the molecular structure of rubber, explain why the gradient at A is less than the gradient at B. [3]
- Autumn 2020, Component 2, Q4(b)(ii) (3 marks): When the specimen is gradually unloaded, it is noted that the curve for unloading is different from the curve for loading. I. Name this phenomenon and account f
- Autumn 2020, Component 2, Q5(a)(i) (2 marks): Show that the maximum extension possible for the wire without the elastic limit being exceeded is 1.25 mm. [2]
- Autumn 2020, Component 2, Q5(a)(ii) (3 marks): Simon believes that this maximum extension (1.25 mm) of the steel wire depends on the radius of the wire. Natalie disagrees. Discuss who is correct, explaining
- Autumn 2020, Component 2, Q5(b)(i) (3 marks): Show that the force per unit extension, k, of the wire is 80 kN m–1. [3]
- Autumn 2020, Component 2, Q5(b)(ii) (2 marks): Determine the mass, m, that causes an equilibrium extension of 1.0 mm. [2]
- June 2019, Component 2, Q5(a)(i) (3 marks): Show that the total extension, Δxtotal, of the bar under the action of an applied force, F, as shown in the diagram, can be given by: 4FL0 Δxtotal = 3AE where E
- June 2019, Component 2, Q5(a)(ii) (1 mark): The graph shows the variation of extension with applied force for the part of cross- section, A. Draw (on the same grid) the expected force-extension graph for
- June 2019, Component 2, Q5(a)(iii) (3 marks): Determine the Young modulus of the metal in the bar given that L0 = 1.2 m and A = 2.0 × 10–4 m2 [3]
- June 2019, Component 2, Q5(a)(iv) (2 marks): Calculate the elastic potential energy stored in the whole bar when F = 400 N. [2]
- June 2019, Component 2, Q5(b)(i) (3 marks): Use the graph to estimate the greatest mass which can be hung from a glass fibre of diameter 0.2 mm. [3]
- June 2019, Component 2, Q5(b)(ii) (2 marks): Explain the term brittle fracture as it applies to glass and give a reason why very thin fibres have a greater breaking stress than thicker ones. [2]
- June 2019, AS Component 1, Q1(a)(i) (1 mark): Define the Young modulus of a material. [1]
- June 2019, AS Component 1, Q1(a)(ii) (3 marks): Express the unit of the Young modulus in terms of S.I. base units. [3]
- June 2019, AS Component 1, Q1(b)(i) (3 marks): When a rubber band is gradually loaded and then unloaded it shows hysteresis and permanent set. Sketch, and clearly label a force-extension graph for rubber to
- June 2019, AS Component 1, Q1(b)(ii) (2 marks): Considering the molecular structure of rubber explain why it has a much lower value of Young modulus than that of a metal. [2]
- June 2019, AS Component 1, Q1(b)(iii) (2 marks): What is the effect on the Young modulus of rubber when its temperature rises? Explain your answer. [2]
- June 2019, AS Component 1, Q3(a) (1 mark): State Hooke’s law. [1]
- June 2019, AS Component 1, Q3(b)(i) (3 marks): Calculate the velocity with which it leaves the ground. [3]
- June 2019, AS Component 1, Q3(b)(ii) (2 marks): Determine the initial acceleration of the toy as the spring extends. State any assumption you make. [2]
- June 2018, Component 2, Q3(a) (2 marks): Explain how the choice of a suitable comparison wire minimises the effect of a change in temperature. [2]
- June 2018, Component 2, Q3(b) (3 marks): Kiera uses a micrometer of resolution 0.01 mm to measure the mean diameter of the wire. She determines the mean diameter to be 0.16 mm. Calculate the cross-sect
- June 2018, Component 2, Q3(c) (2 marks): Kiera then uses a metre ruler with a resolution of 1 mm to measure the initial length of the wire. She determines the length to be 1.680 m. Show, with an approp
- June 2018, Component 2, Q3(d)(i) (4 marks): I. Add error bars for the extension on the plotted points. [1] II. Draw lines of maximum gradient and minimum gradient and determine the gradients of both lines
- June 2018, Component 2, Q3(d)(ii) (2 marks): Hence, calculate the mean gradient and the percentage uncertainty in its value. [2]
- June 2018, Component 2, Q3(e) (5 marks): Determine the Young modulus of the metal alloy, along with its absolute uncertainty. Give your answer to an appropriate number of significant figures. [5]
- June 2018, Component 2, Q3(f) (2 marks): State which of the measurements contributes most to the overall uncertainty in your answer and suggest one change Kiera could make to her experiment which would
- June 2018, Component 3, Q4(c)(iv) (3 marks): Calculate the strain produced in a laser structure if the power of the beam between the mirrors is 2.0 × 1015 W. You may assume that the structure of the laser
- June 2018, AS Component 1, Q1(a)(i) (1 mark): Emily measures the length and diameter of the glass fibre and finds them to be 19.8 cm and 1.01 mm respectively. Suggest what measuring instruments she uses. [1
- June 2018, AS Component 1, Q1(a)(ii) (3 marks): Determine the Young modulus of glass. [3]
- June 2018, AS Component 1, Q1(a)(iii) (2 marks): Write a risk assessment for Emily’s experiment. [2]
- June 2018, AS Component 1, Q1(a)(iv) (2 marks): Determine the energy stored in the glass just before breaking point is reached. [2]
- June 2018, AS Component 1, Q1(b) (3 marks): Glass is a brittle material. Describe the process by which glass fractures. [3]
- June 2018, AS Component 2, Q1(c) (3 marks): A section of rock undergoes a tensile stress of 900 MPa during an earthquake. Calculate the tensile strain if the Young modulus is 70 GPa for rock. [3]
- June 2017, Component 2, Q8(a) (6 marks): The diagrams show a microscopic view and an atomic representation of the crystalline structure of a typical metal. GRAIN BOUNDARY GRAIN Microscopic view Atomic
- June 2017, Component 2, Q8(b)(i) (3 marks): Determine whether or not these measurements are consistent with copper having a Young Modulus of 120 GPa. [3]
- June 2017, Component 2, Q8(b)(ii) (2 marks): Estimate the work needed to produce a strain of 0.2% in the wire. [2]
- June 2017, Component 2, Q8(b)(iii) (1 mark): Sketch a line on the graph to show the possible behaviour of the wire when the 20 N force is removed. [Assume the wire has been stretched beyond its elastic lim
- June 2017, AS Component 1, Q1(a) (3 marks): Solid materials can be categorised into one of three different types. Complete the table describing the molecular structure of each type of solid. [3] Type of s
- June 2017, AS Component 1, Q1(b) (4 marks): Sketch on the axis below a typical stress-strain graph for a length of ductile metal wire when it is gradually loaded until it breaks. Label, on your graph the:
- June 2017, AS Component 1, Q1(c)(i) (4 marks): A nylon fishing line of negligible mass has a breaking stress of 60 MPa. Calculate the minimum diameter of line needed to lift a fish of mass 5.0 kg vertically
- June 2017, AS Component 1, Q1(c)(ii) (2 marks): When lifting the fish vertically 2.00 m of the line extends by 40 mm. Use this information to calculate a value for the Young modulus of the nylon line at break
- June 2017, AS Component 1, Q1(c)(iii) (2 marks): If the fish struggles the force on the line can be increased by a factor of ten. Calculate the minimum diameter of line now required to stop the line breaking.
- June 2016, AS Component 1, Q7(a) (1 mark): Define the Young modulus. [1]
- June 2016, AS Component 1, Q7(b) (6 marks): A student, Chloe, obtains a graph of force against extension for the loading of a rubber band. Force C B A Extension Describe and explain the variation of the Y
- June 2016, AS Component 1, Q7(c) (2 marks): Add to the graph opposite to show what would happen when Chloe unloaded the rubber band. Account for any differences between the two lines. [2]
- June 2016, AS Component 1, Q7(d) (2 marks): Some plastic shopping bags are made of non-biodegradable polymers. Discuss whether or not there should be a charge for using non-biodegradable plastic bags. [2]
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