plumiRotational kinetic energy: AQA A‑Level Physics questions
AQA A-Level Physics past-paper questions on 3.11.1.2 Rotational kinetic energy, 2008–2025, with mark schemes and examiner’s reports where available.
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All 31 questions on Rotational kinetic energy, as a list
- June 2025, Paper 3 Engineering physics, Q02.1 (3 marks): The moment of inertia I of any rolling object about its axis of rotation is given by I = Amr2 where A is a constant that depends on the shape of the object m is
- June 2025, Paper 3 Engineering physics, Q02.3 (3 marks): Figure 5 shows all four objects at rest at the top of a slope. They are released at the same time and roll down the slope without slipping. Figure 5 Deduce the
- June 2023, Paper 3 Engineering physics, Q01.3 (2 marks): A new flywheel with a greater moment of inertia is fitted in place of the original flywheel. The motor torque is constant and the same as before. Sketch on Figu
- June 2023, Paper 3 Engineering physics, Q01.4 (1 mark): Explain one difference between your graph and the original graph. [1 mark]
- June 2022, Paper 3 Engineering physics, Q02.1 (3 marks): Calculate the minimum angular speed of the flywheel when the tram leaves stop A so that the tram reaches stop B using only energy stored in the flywheel. [3 mar
- June 2022, Paper 3 Engineering physics, Q02.2 (2 marks): Between stops C and D the tram travels downhill. Suggest two advantages of keeping the flywheel connected to the driving wheels when the tram travels downhill.
- June 2022, Paper 3 Engineering physics, Q02.3 (6 marks): The same tram is to be used on a track where the stops are further apart, so the flywheel system needs to be modified. Discuss the design features of the flywhe
- November 2021, Paper 3 Engineering physics, Q02.1 (3 marks): The yo-yo accelerates uniformly as it falls from rest. The string remains taut and has negligible thickness. mass of yo-yo = 9.2 × 10−2 kg radius of axle = 5.0
- June 2019, Paper 3 Engineering physics, Q01.1 (2 marks): When the punch reaches the metal sheet, the rotational speed of the arms is 2.9 rev s−1. At this speed the rotational kinetic energy of the rotating parts is 10
- June 2019, Paper 3 Engineering physics, Q01.4 (3 marks): For thicker or stiffer metal sheets the rotational kinetic energy at 2.9 rev s−1 is not enough to punch out the shape. The distance from the axis of rotation to
- June 2019, Paper 3 Engineering physics, Q02.2 (6 marks): The diesel engine or the electric motor may be used to drive a machine that has a low moment of inertia and that requires an almost constant torque. Discuss why
- June 2018, Paper 3 Engineering physics, Q02.1 (1 mark): State one function of a flywheel. [1 mark]
- Specimen, Paper 3 Engineering physics, Q02.1 (2 marks): Figure 3 shows an experiment to determine the moment of inertia of a bicycle wheel One end of a length of strong thread is attached to the tyre. The thread is w
- Specimen, Paper 3 Engineering physics, Q02.2 (3 marks): Figure 3 shows an experiment to determine the moment of inertia of a bicycle wheel One end of a length of strong thread is attached to the tyre. The thread is w
- June 2016, PHYA5 Applied physics (old spec), Q1(c)(ii) (1 mark): Show that the kinetic energy of the spinner when rotating at its operating speed is about 2 J. [1 mark]
- June 2016, PHYA5 Applied physics (old spec), Q1(c)(iii) (1 mark): Determine the moment of inertia of the spinner about its axis of rotation. [1 mark] moment of inertia = ________________________ kg m2
- June 2016, PHYA5 Applied physics (old spec), Q2 (6 marks): Figure 3 shows the mechanism of a dynamo torch for providing light without the use of batteries. When the handle is squeezed the gears rotate the flywheel incre
- June 2015, PHYA5 Applied physics (old spec), Q2(c)(i) (2 marks): Calculate the change in rotational kinetic energy of the turntable and plasticine from the instant before the plasticine is dropped until immediately after it s
- June 2015, PHYA5 Applied physics (old spec), Q2(c)(ii) (1 mark): Explain the change in rotational kinetic energy. [1 mark]
- June 2014, PHYA5 Applied physics (old spec), Q1(c)(i) (3 marks): Show that for the time that the load is accelerating the total increase in energy of the load and the rotating parts is about 5400 J. [3 marks]
- June 2014, PHYA5 Applied physics (old spec), Q2 (6 marks): In the sport of sprint cycling rapid acceleration is required. Discuss the importance of moment of inertia in the design of sport cycle wheels. In your account
- June 2012, PHYA5 Applied physics (old spec), Q2(c) (2 marks): If the blade is accidentally touched when it is rotating, an electronic safety brake stops the blade in 5.0ms. This is fast enough to prevent serious injury. Th
- June 2012, PHYA5 Applied physics (old spec), Q3(b) (6 marks): The dynamo has a low moment of inertia. l Explain why the engine torque varies over a cycle. l Explain why, in terms of kinetic energy or angular momentum, it i
- June 2011, PHYA5 Applied physics (old spec), Q2(a) (6 marks): Describe and explain some of the design features of a flywheel in order for it to store maximum energy. Your answer should include consideration of the flywheel
- June 2011, PHYA5 Applied physics (old spec), Q2(b)(i) (1 mark): Calculate the energy transferred from the flywheel to the car. answer = J (1 mark)
- June 2010, PHYA5 Applied physics (old spec), Q1(a)(ii) (2 marks): ( ) 1 (a) (ii) Calculate the total rotational kinetic energy of the roundabout and children. answer = J (2 marks)
- June 2010, PHYA5 Applied physics (old spec), Q1(b)(iii) (1 mark): Calculate the new rotational kinetic energy of the roundabout and children. answer = J (1 mark)
- June 2010, PHYA5 Applied physics (old spec), Q1(c) (1 mark): Explain where the increase of rotational kinetic energy of the roundabout and children has come from. (1 mark)
- June 2008, PHA7W (2008 spec), Q4(a) (2 marks): 4 (a) Explain the function of the flywheel. You may be awarded marks for the in your answer. (2 marks)
- June 2008, PHA7W (2008 spec), Q4(b) (1 mark): 4 (b) The moment of inertia of the flywheel about its axis is 3.7 × 10 –3 kg m 2. Before a stitch is made the angular speed of the driveshaft is 14 rad s –1. Ca
- June 2008, PHA7W (2008 spec), Q4(c) (3 marks): 4 (c) After the handle is released a stitch is made, and the kinetic energy of the flywheel is reduced by 0.082 J. Calculate 4 (c) (i) the angular speed of the
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