plumiStress, strain and the Young modulus: Edexcel International A Level Physics questions
Edexcel International A Level Physics past-paper questions on 1.4.2.2 Stress, strain and the Young modulus, 2019–2025, with mark schemes and examiner’s reports where available.
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Q17(b)
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All 37 questions on Stress, strain and the Young modulus, as a list
- June 2025, AS Unit 1, Q17(b) (5 marks): The fourth string on the violin has an original length of 0.750 m. When the tension applied to the string is 36 N, the new length of the string is 0.752 m. The
- January 2025, AS Unit 1, Q1 (1 mark): Stress is applied to a sample of a material. The stress is increased until the sample breaks. The graph shows the relationship between stress and strain for the
- January 2025, AS Unit 1, Q17(a) (2 marks): The original length of the sample was 36.8 m. Calculate the strain in the sample when the length of the sample increased to 38.1 m. (2) Strain =
- January 2025, AS Unit 1, Q17(b)(i) (4 marks): The diameter of the sample is 220 mm. Determine the force applied to the sample when the strain was 0.025 (4) Force =
- October 2024, AS Unit 1, Q18(a) (3 marks): The stress in one thread was 4.3 MPa. The radius of the thread was 1.9 × 10 −6 m. Calculate the force applied to the thread. (3) Force =
- October 2024, AS Unit 1, Q18(c)(i) (2 marks): The sketch graph shows the stress-strain relationship for the spider silk up to its limit of proportionality. Stress Strain Add a line to the sketch graph to sh
- June 2024, AS Unit 1, Q9 (1 mark): A student attached one end of a wire to a support. The student added masses to the other end of the wire, as shown. The student measured the corresponding exten
- June 2024, AS Unit 1, Q16(b) (4 marks): Another student attaches a weight of 5.0 N to a copper wire of diameter 0.56 mm. Calculate the extension of the wire. length of wire = 2.5 m Young modulus of co
- January 2024, AS Unit 1, Q1 (1 mark): Which of the following is an SI unit for stress? A kg m −2 B m 2 kg −2 C m 2 N −1 D N m −2
- January 2024, AS Unit 1, Q17(c) (5 marks): For each mass added, the student determined the force on the wire. The student plotted the graph shown. 12 10 8 Δx / mm 6 4 2 0 0 5 10 15 20 Force / N The table
- October 2023, AS Unit 1, Q8 (1 mark): A student applied a tensile force to a metal wire of length x and diameter d. The length of the wire increased by Δx. The student applied the same force to a se
- October 2023, AS Unit 1, Q16(b)(i) (4 marks): When the object is suspended, the strain in the cable is 3.0 × 10 –4 Calculate the Young modulus of the steel in the cable. cross-sectional area of cable = 5.1
- June 2023, AS Unit 1, Q3 (1 mark): A student applies a force to a copper wire. Which row of the table shows the length and diameter of wire that would produce the greatest extension? Length of wi
- June 2023, AS Unit 1, Q20(b)(iii) (4 marks): To make sure the actor is safe, the stress in the cable must be less than 15% of the yield point stress. The cable has a yield point stress of 2.5 × 108 Pa. The
- June 2023, AS Unit 1, Q20(c) (4 marks): The original cable is replaced with a new cable made from a different material. This material has a lower Young modulus than the material used to make the origi
- January 2023, AS Unit 1, Q14(b)(ii) (4 marks): The metal part must not compress more than 0.60 mm when a force of 9.5 × 10 5 N is applied. Deduce whether this metal is suitable for the part. length of part =
- October 2022, AS Unit 1, Q5 (1 mark): A sample of a material is in the form of a wire. The material has a large value of the Young modulus. Which of the following statements best describes the mater
- October 2022, AS Unit 1, Q12(a) (3 marks): The student had enough slotted masses to apply a weight of up to 150 N to the wire. The breaking stress for constantan is about 420 MPa. Deduce whether the wire
- June 2022, AS Unit 1, Q12(b)(i) (2 marks): Calculate the strain of the cable at its elastic limit. (2) Strain =
- June 2022, AS Unit 1, Q12(b)(ii) (2 marks): Calculate the stress in the cable at its elastic limit. (2) Stress =
- January 2022, AS Unit 1, Q8 (1 mark): A wire breaks when a tensile force T is applied. A second wire, made of the same material, has twice the diameter. Which of the following is the force required
- January 2022, AS Unit 1, Q13(b)(i) (3 marks): Determine the strain in the rope while it is supporting the weight of the climber. You may ignore the weight of the rope. (3) Strain =
- January 2022, AS Unit 1, Q13(b)(ii) (3 marks): The rope has a cross-sectional area of 3.14 × 10−4 m2. Determine the Young modulus of the rope material. (3) Young modulus =
- October 2021, AS Unit 1, Q14(c) (3 marks): The breaking stress for this stainless steel is known to be 480 MPa. Deduce whether it is safe for the student to increase the weight to 100.0 N. (3)
- October 2021, AS Unit 3, Q3(a) (4 marks): Describe a method to determine the maximum force the nylon fishing line can withstand before breaking. (4)
- October 2021, AS Unit 3, Q3(c)(ii) (5 marks): The student read an article that suggested nylon fishing line can absorb water. The article suggested that the ultimate tensile stress of nylon decreases by 10
- June 2021, AS Unit 1, Q5 (1 mark): A compressive force F is applied to an object made of a material with Young modulus E. The original length of the object in the direction of the force is x, and
- June 2021, AS Unit 1, Q17(b)(i) (3 marks): Show that the stiffness k of the nylon rope is about 1.4 × 105 N m−1 . (3)
- January 2021, AS Unit 1, Q16(b)(ii) (4 marks): The sample broke at point B. Determine the force required to break the sample. (4) Force =
- October 2020, AS Unit 1, Q19(b)(ii) (2 marks): The pylons are positioned every 270 m. Show that the stress in a strand of steel is about 70 MPa. (2) cross-sectional area of one strand = 2.3 × 10−6 m2 tension
- October 2020, AS Unit 1, Q19(b)(iii) (3 marks): ACSR cables consist of a steel core surrounded by strands of aluminium cable. The extension produced, due to the tension, for each strand of aluminium is 0.95 m
- January 2020, AS Unit 1, Q18(a) (1 mark): State the meaning of the term Young modulus. (1)
- January 2020, AS Unit 3, Q5(a) (2 marks): A teacher is given a sample of the same material with diameter 1 mm. Justify the teacher’s decision that it would be safe for her students to determine the brea
- January 2020, AS Unit 3, Q5(b) (4 marks): To determine the breaking stress, a student used 100 g slotted masses hung vertically from the sample. The maximum mass that the sample could hold before breaki
- June 2019, AS Unit 1, Q17(a)(i) (5 marks): Show that the maximum force acting on the climber due to the rope is about 10 kN. Assume the extension of the rope is proportional to its tension. total unstret
- January 2019, AS Unit 1, Q7 (1 mark): One end of a 50 cm length of wire is attached to a support. A load is attached to the free end of the wire, which extends by 2 mm. Which of the following is the
- January 2019, AS Unit 1, Q9 (1 mark): The stiffness constant and the Young modulus are terms used in physics. Which row of the table shows the correct application of these terms? Stiffness constant
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