plumiMechanical properties of materials: OCR A‑Level Physics B questions
Every OCR A-Level Physics B exam question on 3.2 Mechanical properties of materials, 2016–2025, with its mark scheme and examiner’s report.
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Calculations
![June 2025 Paper 1, question 12: How much work is done in stretching the wire by 1.2 mm? A 3.6 mJ B 4.3 mJ C 7.2 mJ D 22.6 mJ Your answer [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/h55701-jun25-12-qp.webp?v=3)
Q1(b)(i)
The whole paper ↗![June 2025 Paper 2, question 1(b)(i): [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/h55702-jun25-01-bi-qp.webp?v=3)
Q1(b)(ii)
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Q1(c)
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![June 2025 AS Paper 1, question 10: Which class of material shows behaviour due to chain entanglement? A Ceramic B Glass C Metal D Polymer Your answer [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/h15701-jun25-10-qp.webp?v=3)
Q24(b)
The whole paper ↗![June 2025 AS Paper 1, question 24(b): Estimate the spacing between the molybdenum atoms. Spacing = nm [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/h15701-jun25-24-b-qp.webp?v=3)
Q3(a)
The whole paper ↗![June 2025 AS Paper 2, question 3(a): Describe how the student makes the measurements to calculate the mean diameter. [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/h15702-jun25-03-a-qp.webp?v=3)
Q3(b)
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Q3(c)
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![June 2024 Paper 1, question 1: Which of these units is equivalent to the units of the spring constant, N m–1? 1 kg m–2 A kg m s–1 B kg m s–2 C kg s–2 D Your answer [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/h55701-jun24-01-qp.webp?v=3)
Q36(a)(i)
The whole paper ↗![June 2024 Paper 1, question 36(a)(i): Use information from Fig. 36.1 to calculate the stiffness k of the wire. stiffness = N m–1 [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/h55701-jun24-36-ai-qp.webp?v=3)
Q1(b)
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Q3(a)
The whole paper ↗![June 2024 Paper 2, question 3(a): Show that the extension of the spring is about 0.11m. This is the equilibrium position. [1] Fig. 3.1 shows how the resultant force on the mass changes with the](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/h55702-jun24-03-a-qp.webp?v=3)
All 139 questions on Mechanical properties of materials, as a list
- June 2025, Paper 1, Q10 (1 mark): Which statement describes both the deformations and the nature of the wire? Deformations Nature A elastic followed by plastic brittle B elastic followed by plas
- June 2025, Paper 1, Q11 (1 mark): The gradient of the graph up to a 1.5 mm extension can be used to determine the Young modulus for the material of the wire. Which expression gives the Young mod
- June 2025, Paper 1, Q12 (1 mark): How much work is done in stretching the wire by 1.2 mm? A 3.6 mJ B 4.3 mJ C 7.2 mJ D 22.6 mJ Your answer [1]
- June 2025, Paper 2, Q1(a) (3 marks): Fig. 1 shows an image of a sheet of gold atoms. Use the image to determine the radius of a gold atom. Explain your choice of the number of significant figures i
- June 2025, Paper 2, Q1(b)(i) (2 marks): [2]
- June 2025, Paper 2, Q1(b)(ii) (2 marks): The manner in which the gold atoms are packed together means that only 74% of the volume of a sample of gold is taken up by the atoms themselves. Use this perce
- June 2025, Paper 2, Q1(c) (3 marks): Images of arrangements of atoms in a metal sometimes reveal dislocations in the microscopic structure. Describe what dislocations are and how the presence of di
- June 2025, AS Paper 1, Q10 (1 mark): Which class of material shows behaviour due to chain entanglement? A Ceramic B Glass C Metal D Polymer Your answer [1]
- June 2025, AS Paper 1, Q11 (1 mark): A cylindrical metal wire of cross-sectional area A, has Young modulus Y. The wire is put under tension T. What is the equation for the strain of the wire? AT A
- June 2025, AS Paper 1, Q24(b) (1 mark): Estimate the spacing between the molybdenum atoms. Spacing = nm [1]
- June 2025, AS Paper 2, Q3(a) (2 marks): Describe how the student makes the measurements to calculate the mean diameter. [2]
- June 2025, AS Paper 2, Q3(b) (3 marks): The student obtains the following results: Mean diameter of wire = 0.38 mm Initial length of wire = 1.500 m Mass suspended from wire = 2.000 kg Extension of wir
- June 2025, AS Paper 2, Q3(c) (1 mark): The student adds masses to the wire until it fractures. Copper is a ductile material. Sketch a graph of stress against strain for the copper wire on Fig. 3.2. F
- June 2024, Paper 1, Q1 (1 mark): Which of these units is equivalent to the units of the spring constant, N m–1? 1 kg m–2 A kg m s–1 B kg m s–2 C kg s–2 D Your answer [1]
- June 2024, Paper 1, Q28 (1 mark): Wires X, Y and Z are made from different metals. They have the same length and the same stretching force is applied to them. The table gives information about t
- June 2024, Paper 1, Q36(a)(i) (2 marks): Use information from Fig. 36.1 to calculate the stiffness k of the wire. stiffness = N m–1 [2]
- June 2024, Paper 1, Q36(b) (6 marks): Fig. 36.1 shows how the extension of a metal alloy wire varies with increasing load. Fig. 36.2 shows the same information for a rubber strip. The metal alloy wi
- June 2024, Paper 2, Q1(b) (2 marks): Here are some data about the rope that attaches the sail and parasailor to the boat. diameter = 12.0 mm Young modulus = 13.2 GPa length = 240 m Calculate the ex
- June 2024, Paper 2, Q3(a) (1 mark): Show that the extension of the spring is about 0.11m. This is the equilibrium position. [1] Fig. 3.1 shows how the resultant force on the mass changes with the
- June 2024, AS Paper 1, Q3 (1 mark): The diagram shows the arrangement of particles in a metal. metal particle X The structure marked X is best described as: A A dislocation B A fracture C Chain en
- June 2024, AS Paper 1, Q20 (1 mark): Two wires P and Q are made from different metals. Wire P has double the diameter and double the unstretched length of wire Q. Equal weights are suspended from b
- June 2024, AS Paper 1, Q25(a) (4 marks): Molly’s teacher has asked her to plan how to carry out her investigation safely. Suggest two hazards from using the apparatus shown in Fig. 25.1. For each hazar
- June 2024, AS Paper 1, Q25(b) (2 marks): Molly chooses a wire with diameter 0.22 mm. Calculate the cross-sectional area of the wire. Assume it has uniform, circular cross-section. Cross-sectional area
- June 2024, AS Paper 1, Q25(c)(i) (2 marks): Complete Molly’s calculation to determine the Young modulus of copper. Fl Young modulus = eA 7.37 x 107 = gradient = Young modulus = GPa [2]
- June 2024, AS Paper 1, Q25(c)(ii) (2 marks): Describe what the area under the graph represents. [2]
- June 2023, Paper 1, Q12 (1 mark): Which one of the following statements about materials is correct? A Alloys are tougher than pure metals because small numbers of alloying atoms resist the movem
- June 2023, Paper 1, Q36(c) (6 marks): This question is about the gravitational field between the Earth and the Moon. (c)* It is suggested that projectiles can be launched from the Moon to the Earth
- June 2023, Paper 1, Q38(a) (6 marks): (a)* Fig. 38.1 shows equipment used to determine the Young Modulus of a wire. Fig. 38.1 Describe how the equipment can be used to determine the Young Modulus. D
- June 2023, Paper 1, Q38(b)(i) (2 marks): Calculate the extension at which the wire will begin to show plastic deformation. extension = m [2]
- June 2023, Paper 1, Q38(b)(ii) (2 marks): Calculate the energy stored in the wire at the extension calculated in (b)(i). energy stored = J [2]
- June 2023, Paper 1, Q38(b)(iii) (2 marks): The wire is replaced with one of twice the length of the original wire. The new wire is of the same material and cross-sectional area as the original wire. Stat
- June 2023, Paper 1, Q38(b)(iv) (2 marks): Floating oil rigs are towed into position by small, powerful boats called tugs. Suggest and explain why long cables are used to attach the rig to the tugs. [2]
- June 2023, AS Paper 1, Q1 (1 mark): What defines a weak material? A A low elastic limit B A low fracture stress C A low yield stress D A low Young modulus Your answer [1]
- June 2023, AS Paper 1, Q9 (1 mark): The graph shows the stress and strain for a loaded wire. 60 stress / MPa 40 20 0 0 2 4 6 8 strain / 10–4 The Young modulus of the wire is: A 14 GPa B 60 GPa C 7
- June 2023, AS Paper 1, Q11 (1 mark): When the load on a stretched wire is doubled without exceeding its elastic limit, the elastic strain energy, E, increases to: A 2 E B 2 E C 2 E D 4 E Your answe
- June 2023, AS Paper 1, Q15 (1 mark): Which experiment does not provide direct evidence of the size or spacing of particles? A Electron diffraction images B Oil drop film experiment C Photoelectric
- June 2023, AS Paper 1, Q23(a) (2 marks): Describe the student’s observations as the stress is increased. Glass Copper [2]
- June 2023, AS Paper 1, Q23(b) (2 marks): Explain the observations in terms of mobile dislocations. You may use a diagram to explain your answer. [2]
- June 2023, AS Paper 2, Q6(a) (6 marks): This question is about the stresses in vertical cables (‘hangers’) used to support the rigid deck of a suspension bridge and the vehicles it carries. The hanger
- June 2023, AS Paper 2, Q6(b)(i) (3 marks): Use the data above to show that the tensile stress in the hangers is less than 2 % of their yield stress. You can assume the load is evenly shared between the h
- June 2023, AS Paper 2, Q6(b)(ii) (3 marks): The maximum number of vehicles allowed on this bridge at any one time would give an additional load of 6000 kg per metre length of the suspended deck. Calculate
- June 2023, AS Paper 2, Q6(b)(iii) (2 marks): Suggest two reasons why the maximum number of vehicles allowed on the bridge is less than the theoretical number based on calculations of stress. 1. 2. [2]
- June 2022, Paper 1, Q11 (1 mark): A wire of original length 2.800 m is extended by 3 mm when a tensile force of 180 N is applied. The diameter of the wire is 1.2 mm. What is the Young modulus of
- June 2022, Paper 3, Q4(a)(i) (4 marks): Describe the experimental technique the student could use to gather reliable data. Include in your answer how BOTH experimental uncertainties and risks can be m
- June 2022, Paper 3, Q4(a)(ii) (6 marks): This question is about the behaviour of materials under tension. A student sets up an experiment to investigate the force–extension characteristics of a rubber
- June 2022, Paper 3, Q4(b)(ii) (3 marks): The gradient of the line of best fit in Fig. 4.2 is 10 100 NM–1. Use this to calculate a value for the Young modulus of the wire. Use the line you have drawn to
- June 2022, AS Paper 1, Q2 (1 mark): A rubber band is made from a polymer. At room temperature the polymer is: A Flexible and tough B Stiff and strong C Strong and flexible D Tough and stiff Your a
- June 2022, AS Paper 1, Q16 (1 mark): Which of the statements about metals below is not correct? A Metals contain more free electrons than insulators. B Metals have a high breaking stress due to str
- June 2022, AS Paper 1, Q17 (1 mark): A metal wire has cross-sectional area A, and length L. Another wire is made from the same material with cross-sectional area 4A, and length 4L. Both wires are l
- June 2022, AS Paper 1, Q23(a) (2 marks): Sketch the relationship between the radius of the patch and its thickness as it spreads. thickness radius [2] The patch spreads out until its thickness can be a
- June 2022, AS Paper 1, Q23(b) (3 marks): Calculate an approximate size of an oil molecule in metres. oil drop volume = 0.05 mm3 patch radius = 20 cm size of molecule = m [3]
- June 2022, AS Paper 1, Q27(a) (3 marks): Use the graph to determine the spring constant of the spring. spring constant = N m–1 [3]
- June 2022, AS Paper 2, Q5(a) (2 marks): Calculate the stress in the wire if a load of mass 25 kg is attached to the bottom of the wire. stress = Pa [2]
- June 2022, AS Paper 2, Q5(b) (2 marks): Calculate the elastic strain energy stored in the wire by the 25 kg load. The Young modulus of elasticity of steel is 2.1 × 1011 Pa. energy stored = J [2]
- June 2022, AS Paper 2, Q5(c) (3 marks): The yield stress of this steel is about 15% higher than the value calculated in (a). Explain why the 25 kg load, once attached to the end of the wire, should be
- November 2021, Paper 1, Q7 (1 mark): The chart displays the strength and toughness of various materials. 10 000 metals and alloys 1 000 polymers glasses 100 strength (MPa) 10 1 wood and wood produc
- November 2021, Paper 1, Q31 (3 marks): The STM image below shows an open ring of silver atoms. 3.5 nm Use the scaled STM image to estimate the diameter of a silver atom. diameter = nm [3]
- November 2021, Paper 2, Q4(a) (2 marks): Calculate the Young modulus of the sample. Young modulus = Pa [2]
- November 2021, Paper 2, Q4(b)(i) (3 marks): Using data from the question, calculate the number of atoms in one plane of area 5.90 × 10–8 m2 and use this value to calculate the tension force between pairs
- November 2021, Paper 2, Q4(b)(ii) (2 marks): Using data from the question, calculate the increase in distance of separation Δr of the planes of copper atoms when the wire experiences a tension force of 3.4
- November 2021, Paper 2, Q4(b)(iii) (2 marks): Use your answers to (b)(i) and (b)(ii) to calculate the force constant k between a pair of copper atoms. force constant = N m–1 [2]
- November 2021, Paper 2, Q4(c) (6 marks): This question is about the macroscopic behaviour of a metal under tension and a model of the microscopic structure of the metal. A 3.951 m length of copper wire
- November 2021, AS Paper 1, Q1 (1 mark): Ceramic materials are typically A Brittle and strong B Brittle and tough C Strong and shiny D Tough and flexible Your answer [1]
- November 2021, AS Paper 1, Q11 (1 mark): Dislocations in the microscopic structure of metals lead to A Brittleness of the material B High conductivity of the material C Molecular chains unravelling D S
- November 2021, AS Paper 1, Q21(a) (1 mark): Use the image to estimate the minimum separation of the carbon atoms in graphite. separation = nm [1]
- November 2021, AS Paper 1, Q21(b) (2 marks): Show that the number of carbon atoms in a 1.0 cm3 sample of graphite is about 1.1 × 1023. The density of graphite is 2.10 g cm–3. The mass of a carbon atom is 2
- November 2021, AS Paper 1, Q21(c) (2 marks): Estimate the separation of carbon atoms in graphite using data from (b). separation = nm [2]
- November 2021, AS Paper 1, Q25(a) (2 marks): Explain why metals are a good choice of material for making car suspension springs. [2] The student sets up the apparatus shown in Fig. 25 to investigate the be
- November 2021, AS Paper 1, Q25(c) (1 mark): Complete the table with values of compression. [1]
- November 2021, AS Paper 1, Q25(d) (3 marks): Determine the spring constant of the system and give the unit. spring constant = unit [3]
- November 2021, AS Paper 1, Q25(e) (2 marks): Describe how the results would differ if a third identical spring were added beneath the tray. [2]
- November 2021, AS Paper 2, Q3(a) (2 marks): Imagine that you produced the force by holding the ends of the rubber strip in each hand and pulling. Describe what it would feel like as you pulled the band fr
- November 2021, AS Paper 2, Q3(b) (2 marks): The area between the section BCO and the extension axis is different from the area between the section OAB and the extension axis. Explain in terms of energy wh
- November 2020, Paper 1, Q34(a) (2 marks): Calculate the Young modulus for the elastic region of this spider silk. Young modulus = Pa [2]
- November 2020, Paper 1, Q34(b) (2 marks): This table compares some mechanical properties of spider silk and high tensile steel. Density ρ / kg m−3 Breaking stress σB / GPa 1.2 × 103 Spider silk 1.4 High
- November 2020, Paper 2, Q5(a)(i) (1 mark): The cord stretches to a length L1 = 1.31 m when the tennis ball hangs from it. Show that the force constant of the cord is about 3.7 N m−1. [1]
- November 2020, Paper 2, Q5(a)(ii) (2 marks): Calculate the energy stored in the cord at this length. energy stored = J [2]
- November 2020, Paper 2, Q5(b) (4 marks): In the sport of bungee jumping, the jumper is tied to a long bungee rope and leaps from a high point. The bungee rope stretches until the jumper stops falling a
- November 2020, AS Paper 1, Q12 (1 mark): Estimate the extra energy stored in the rubber band when the extension increases from 5 cm to 20 cm. A 0.15 J B 0.75 J C 30 J D 100 J Your answer [1]
- November 2020, AS Paper 1, Q13 (1 mark): The original length of the rubber band is 10 cm. Calculate the strain in the rubber band when 4 N is applied. A 0.4 B 0.5 C 4 D 5 Your answer [1]
- November 2020, AS Paper 1, Q22(a) (2 marks): Complete the table to show the class of material for each of A, B and C. Class of material Material Polymer Metal Ceramic [2]
- November 2020, AS Paper 1, Q22(b)(i) (1 mark): has the greatest stiffness? [1]
- November 2020, AS Paper 1, Q22(b)(ii) (1 mark): has the greatest strength? [1]
- November 2020, AS Paper 2, Q2(a) (2 marks): Ceramics and metals are both very strong, but metals are much tougher than ceramics. Explain the similarity and difference in terms of their structure. [2]
- November 2020, AS Paper 2, Q2(b) (2 marks): When a sample of a material is stretched until it breaks, the surface area of the sample increases. Explain why the toughness of the material can be measured in
- November 2020, AS Paper 2, Q8(b) (6 marks): Sam is attempting to find the Young modulus of copper. She uses a very long piece of wire cut from a new roll, so that the metal has not been twisted or bent be
- November 2020, AS Paper 2, Q8(c)(i) (2 marks): Show that the Young modulus of the metal, E is given by gL m ⎛ ⎞ ⎛ ⎞ E = ⎝ ⎠ ⎝ ⎠ A x where A is the cross-sectional area of the wire, L its length and x the ext
- November 2020, AS Paper 2, Q8(c)(iii) (3 marks): Data books state that the Young modulus of copper is 120 GPa. Use this value, together with data from earlier in this question and the equation gL m ⎛ ⎞ ⎛ ⎞ E =
- June 2019, Paper 1, Q3 (1 mark): Which diagram shows the stress–strain graph for a ductile metal? Your answer [1]
- June 2019, Paper 1, Q4 (1 mark): Which diagram shows the stress–strain graph for a rubber polymer? Your answer [1]
- June 2019, Paper 1, Q17 (1 mark): The spring in this diagram has a spring constant k of 40 N m−1. The mass M of 0.50 kg is attached to the end of the suspended spring and then dropped under grav
- June 2019, AS Paper 1, Q8 (1 mark): A wire of length 2.1 m is stretched using the apparatus shown. ruler marker 4.5 kg mass A mass of 4.5 kg is attached to the end of the wire. The wire extends by
- June 2019, AS Paper 1, Q11 (1 mark): Ceramic materials are generally A Hard and brittle B Stiff and tough C Strong and flexible D Tough and hard Your answer [1]
- June 2019, AS Paper 1, Q16 (1 mark): An unstretched spring is 20 cm long and has a spring constant of 25 N cm–1. It is stretched to 3 times its length and is still following Hooke’s law. The energy
- June 2019, AS Paper 2, Q1(a) (2 marks): Calculate the length of the rod just before fracture. Express your answer to 3 significant figures. length = cm [2]
- June 2019, AS Paper 2, Q1(b) (3 marks): Calculate the force F that was required to produce a strain of 0.1%. F = N [3]
- June 2019, AS Paper 2, Q1(c) (3 marks): Calculate the Young modulus E for small strains. E = Pa [3]
- June 2019, AS Paper 2, Q6(a)(i) (3 marks): Use data from Fig. 6.1 to show that the volume V of a copper atom is about 9 × 10–30 m3. [3]
- June 2019, AS Paper 2, Q6(a)(ii) (2 marks): The mean molar mass of copper is 63.5 g. 1 mole of copper = NA atoms, where NA = 6.02 × 1023 atoms mol–1. Calculate the mean mass m of a single copper atom. m =
- June 2019, AS Paper 2, Q6(a)(iii) (1 mark): Density ρ is defined as the mass per unit volume of a material: ρ = m V Use the answers to (i) and (ii) to calculate the mean density of a copper atom. mean den
- June 2019, AS Paper 2, Q6(a)(iv) (2 marks): The density of copper in the data book is 8920 kg m–3. Suggest and explain one reason for the difference between the value obtained in (iii) and the measured de
- June 2019, AS Paper 2, Q6(b) (6 marks): This question is about the structure and properties of metals. (b)* One particular copper alloy consists of 95% copper and 5% zinc. The table compares the masse
- June 2018, Paper 1, Q6 (1 mark): A weight of 20 N is suspended from a steel wire. What is the extension of the wire? Data: original length of wire = 2.5 m cross-sectional area of wire = 7.0 # 1
- June 2018, Paper 3, Q4(b)(ii) (5 marks): Use the graph and the data given to calculate the value of the Young Modulus E. Include the appropriate unit. E = ………………………… unit [5]
- June 2018, AS Paper 1, Q1 (1 mark): Which of the following correctly describes ceramic materials? A ductile B plastic C stiff D tough Your answer [1]
- June 2018, AS Paper 1, Q3 (1 mark): Which of these statements about metals is not correct? A They have a high number density of charge carriers. B They have directional bonds between the metal ion
- June 2018, AS Paper 1, Q25(a) (1 mark): Name the feature represented by the lines of atoms added to the image in Fig. 25.1. name of feature [1]
- June 2018, AS Paper 1, Q28(a)(i) (1 mark): Calculate the force constant k in MN m−1 for this cable. = x force constant k = MN m−1 [1]
- June 2018, AS Paper 1, Q28(a)(ii) (1 mark): Use algebraic reasoning to show that the force constant k is related to the Young modulus E of the steel by the equation: E A k = L where A is the cross-section
- June 2018, AS Paper 1, Q28(a)(iii) (2 marks): For the cable in the graph, E = 2.1 × 1011 Pa and A = 1.0 × 10−3 m2. Calculate the length L of the cable used. L = m [2]
- June 2018, AS Paper 1, Q28(b)(i) (1 mark): Use Fig. 28 to show that the elastic potential energy stored by the cable at its breaking point is less than 20 MJ. [1]
- June 2018, AS Paper 2, Q3(a) (3 marks): The lift cable is 420 m long when completely unwound. Calculate the tensile stress at the top of the cable, when it is completely unwound and supporting a fully
- June 2018, AS Paper 2, Q3(b) (2 marks): Explain why it is incorrect to use the value of the stress calculated in (a) and the equation E = stress strain to calculate the extension of the cable. [2]
- June 2017, Paper 1, Q40(a) (1 mark): Calculate the Young modulus for the metals using data from Fig. 40.2. Young modulus = Pa [1]
- June 2017, Paper 1, Q40(b) (2 marks): State and justify which of the metals you would use for the crumple zone of a car. [2]
- June 2017, Paper 1, Q40(c)(i) (2 marks): Use the Fig. 40.3 to estimate the diameter of a metal atom. diameter = m [2]
- June 2017, Paper 1, Q40(c)(ii) (1 mark): Name the feature represented by the lines of atoms added to the image. name of structure [1]
- June 2017, Paper 1, Q40(d) (6 marks): This question compares the properties of pure aluminium with Aluminium Strong Alloy. Fig. 40.1 and Fig. 40.2 show stress against strain graphs for these metals.
- June 2017, Paper 2, Q8 (4 marks): The density of silver is 10 500 kg m–3. The mass of one silver atom is 1.8 × 10 –25 kg. 8 Use this data to calculate an estimate for the diameter of an atom of
- June 2017, Paper 3, Q2(a)(i) (3 marks): Apply a test to the data to see if the extension of the spring is proportional to the applied force. Explain your method and state your conclusion. [3]
- June 2017, Paper 3, Q2(a)(ii) (1 mark): Calculate the spring constant k of this spring. g = 9.8 N kg−1 k = N m−1 [1]
- June 2017, AS Paper 1, Q4 (1 mark): This is a force–extension graph for two cords, P and Q, made of different materials. The cords had the same initial length and diameter and were stretched up to
- June 2017, AS Paper 1, Q15 (1 mark): An unextended spring is 0.2 m long and has a spring constant of 2500 N m–1. It is stretched to three times its original length and is still obeying Hooke’s law.
- June 2017, AS Paper 1, Q17 (1 mark): Two wires of the same material are of equal unstretched length. One of the wires has double the diameter of the other wire. Equal weights are suspended from bot
- June 2017, AS Paper 1, Q23(a) (2 marks): Describe what the graph shows in terms of the stiffness of this polymer at different strains. �����������������������������������������������������������������
- June 2017, AS Paper 1, Q23(b) (2 marks): Estimate the gradient of the graph just before fracture. Make your method clear. gradient = MPa [2]
- June 2017, AS Paper 1, Q24 (3 marks): An experiment to estimate the size of an oil molecule is shown below. A drop of oil with diameter (0.5 ± 0.1) mm is dropped into water dusted with powder. The o
- June 2017, AS Paper 1, Q26(c)(i) (3 marks): Calculate the operating stress in the cable during towing. stress = Pa [3]
- June 2017, AS Paper 1, Q26(c)(ii) (1 mark): The breaking stress of the metal is 460 MPa. Comment on the safety of the procedure. ��������������������������������������������������������������������������
- June 2017, AS Paper 1, Q26(c)(iii) (2 marks): Calculate the strain in the cable. strain = [2]
- June 2017, AS Paper 2, Q4(a)(i) (1 mark): Identify the structure marked X. X is [1]
- June 2017, AS Paper 2, Q4(a)(ii) (2 marks): Explain how structure X makes the metal ductile. You may wish to draw on Fig. 4 to help your explanation. [2]
- June 2017, AS Paper 2, Q4(b) (2 marks): A pure metal is alloyed by adding a small proportion of atoms of a different metal while the metal is molten. The alloy is often much stiffer and harder than th
- June 2016, AS Paper 1, Q3 (1 mark): The graph shows the variation in stress with strain for a sample of a material. stress 0 0 strain Which of the following statements is not correct? A The materi
- June 2016, AS Paper 1, Q4 (1 mark): Which word used to describe materials does not apply to ceramics? A hard B stiff C strong D tough Your answer [1]
- June 2016, AS Paper 1, Q19 (1 mark): The graphs below show the stress against strain relationships for four different materials, A, B, C and D. Each graph has the same scales. Which of the graphs s
- June 2016, AS Paper 1, Q27(a) (2 marks): Use the data from the STM to calculate the diameter of an iron atom. diameter = m [2]
- June 2016, AS Paper 2, Q5(a)(i) (2 marks): Assume that the force is directly proportional to the distance the string is pulled back. Calculate the work done. work done = J [2]
- June 2016, AS Paper 2, Q5(c) (6 marks): This question is about archery. The bow, originally a weapon, is now used for sport. An early bow consisted of a single, straight piece of wood about 2.0 m long
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