plumiHooke’s law and stiffness: Edexcel International A Level Physics questions
Edexcel International A Level Physics past-paper questions on 1.4.2.1 Hooke’s law and stiffness, 2019–2025, with mark schemes and examiner’s reports where available.
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Q17(a)
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All 33 questions on Hooke’s law and stiffness, as a list
- June 2025, AS Unit 1, Q17(a) (4 marks): A force‑extension graph for a sample of one of the strings is shown below. 80 60 Force / N 40 20 0 0 10 20 30 Extension / mm The table shows the stiffness for s
- January 2025, AS Unit 1, Q6 (1 mark): When a force F is applied to a spring of stiffness k, the extension of the spring is Δx. A force 2F is applied to a second spring of stiffness 3k. Which of the
- October 2024, AS Unit 1, Q12 (2 marks): A student has a spring of length 0.18 m. The spring has a stiffness constant of 25 N m −1. The student applies a force of 7.0 N to stretch the spring. Calculate
- October 2024, AS Unit 1, Q17(a) (6 marks): Explain how the acceleration of the student changes as she moves from Position A to Position C. Assume that air resistance is negligible. (6)
- October 2024, Unit 5, Q19(a)(i) (3 marks): Show that the stiffness of the spring is about 45 N m –1. (3)
- June 2024, AS Unit 1, Q5 (1 mark): Which of the following expressions gives the stiffness of the spring? − A q p R q B R C R q R D q − p
- January 2024, AS Unit 1, Q7 (1 mark): A force is applied to stretch a spring. The graph shows how the length of the spring varies with the applied force. Applied force 0 Length of spring Which of th
- June 2023, AS Unit 1, Q10 (1 mark): Two identical springs are arranged in series. A force of 45.0 N is applied to the springs, as shown. 45.0 N The springs extend a total distance of 15 mm. Which
- June 2023, AS Unit 3, Q4(c)(i) (2 marks): Explain why a graph of cos 2 Δx can be used to determine a value for g. (2)
- June 2023, AS Unit 3, Q4(c)(iv) (2 marks): Determine a value for g from the gradient of the graph. m = 1.20 kg k = 145 N m –1 (2) g =
- January 2023, AS Unit 1, Q15(b)(ii) (2 marks): The extension of the spring was 4.6 × 10 Calculate the stiffness of the spring. (2) Stiffness =
- January 2023, AS Unit 3, Q3(b)(iii) (1 mark): The student replaced the load with a small piece of modelling clay, as shown. support spring l modelling clay He measured l to be 8.4 cm. Determine the weight W
- October 2022, AS Unit 1, Q8 (1 mark): When a certain spring is stretched by a tensile force F, the elastic energy stored in the spring is E. Three of these springs are arranged in parallel and stret
- October 2022, AS Unit 1, Q12(b)(i) (2 marks): Show that the stiffness of the wire is about 1.3 × 104 N m–1. (2)
- June 2022, AS Unit 1, Q7 (1 mark): Two arrangements, P and Q, of identical springs are subjected to the same tensile force F as shown. Q P F F F F When one spring is subjected to a tensile force
- June 2022, AS Unit 1, Q10 (1 mark): When compressed by a force of 50 N, a spring had a length of 12.0 cm. When compressed by a force of 70 N, the same spring had a length of 7.1 cm. Which of the f
- June 2022, Unit 5, Q17(b)(i) (2 marks): The board obeys Hooke’s law as it deforms. Show that the stiffness of the diving board is about 4000 N m–1. (2)
- January 2022, AS Unit 1, Q16(c) (2 marks): Determine the stiffness of the spring. (2) Stiffness =
- October 2021, AS Unit 1, Q3 (1 mark): Two different springs, S1 and S2, are suspended from a fixed support. Masses are attached to the bottom of S1 and S2 as shown. fixed support S1 S2 x 3 x 2m m Th
- October 2021, Unit 5, Q18(a)(i) (2 marks): When the crib supports a mass of 15.0 kg the spring extends by 42.5 cm. Show that the stiffness of the spring is about 350 N m−1. (2)
- June 2021, AS Unit 1, Q17(a) (2 marks): The greater the length of a rope, the smaller the stiffness of the rope. Explain why. (2)
- 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)
- June 2021, AS Unit 1, Q17(b)(ii) (3 marks): The pulley system lifts the 5.00 kN weight at a steady rate. Determine the extension of the rope while the lift is taking place. (3) Extension of rope =
- June 2021, Unit 5, Q17(b)(i) (2 marks): Show that the stiffness k of the spring is about 26 N m−1. (2)
- January 2021, AS Unit 1, Q5 (1 mark): A student is investigating a material in the form of a wire. Which of the following properties of the wire will change if a longer wire is used? A breaking stre
- January 2021, AS Unit 1, Q17(a) (2 marks): The force meter allows force to be measured by means of Hooke’s law. The extension of the spring inside the force meter allows the stretching force to be read f
- January 2021, AS Unit 1, Q17(b) (6 marks): When m is equal to 0.55 kg, the value of P is 8.5 N. Calculate the value of θ, and the extension of the spring in the force meter. (6) θ = Extension of the spri
- October 2020, AS Unit 1, Q16(c) (4 marks): A third student repeated the investigation using two new springs connected in series as shown. The springs were identical to the spring used in the original inv
- October 2020, Unit 5, Q20(b) (5 marks): Calculate the maximum kinetic energy of the oscillating mass. (5) Maximum kinetic energy =
- January 2020, AS Unit 1, Q17(a)(ii) (3 marks): Determine the stiffness k of the elastic cord. mass of glider = 300 g (3) k =
- June 2019, AS Unit 3, Q2(a) (4 marks): Describe what the student should do to obtain the data to plot the force-extension graph. (4)
- June 2019, AS Unit 3, Q2(b) (2 marks): Explain how you would use the graph to determine the stiffness of the spring. (2)
- 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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