2025

Cambridge O Level ยท 5054 ยท Paper 2 ยท Theory

Physics 5054/21 May/June 2025 past paper

Cambridge O Level Physics (5054) Paper 2 (Theory), variant 1, May/June 2025: the question paper and its official mark scheme, 9 questions worth 80 marks, with the grade thresholds. Free to open, no account needed.

Questions
9
Marks
80
Grade A from
46

File names: 5054_s25_qp_21 ยท 5054_s25_ms_21

Grade thresholds for 5054/21 May/June 2025

The minimum raw marks Cambridge set for each grade on this component (out of 80). Thresholds change every session and variant, so always compare your score with the paper you actually sat.

ABCDE
4634231813

Topics in this paper

Which syllabus chapters 5054/21 May/June 2025 tested, by marks. Each chapter links to every past-paper question on it.

ChapterQuestionsMarks
Nuclear model of the atom111
Electric circuits110
Stars & the Universe110
Motion19
Electromagnetic effects19
Forces18
Energy, work & power18
Sound18
Kinetic particle model of matter17

Questions in 5054/21 May/June 2025

  1. Question 1Motion ยท 9 marks

    Fig. 1.1 shows a skydiver falling vertically through the air. Fig. 1.1 In the first part of the fall, her speed increases and her acceleration decreases. In the second part of the fall, her speed is constant. (a) On Fig. โ€ฆ

  2. Question 2Forces ยท 8 marks

    (a) State the principle of moments. (b) An airline passenger wishes to check the weight of a suitcase that he carries as hand luggage onto an aeroplane. He uses a uniform plank of wood, pivoted at its centre, as shown โ€ฆ

  3. Question 3Energy, work & power ยท 8 marks

    A battery, a pulley and a motor are used to lift a load as shown in Fig. 3.1. battery load pulley motor Fig. 3.1 (a) Describe the transfers between energy stores that occur as the load is lifted. (b) The โ€ฆ

  4. Question 4Kinetic particle model of matter ยท 7 marks

    (a) Evaporation of water from the surface of the skin causes cooling. (i) Describe, using ideas about particles, how evaporation causes cooling. (ii) State one difference between evaporation and boiling. (b) When a refrigerator is switched on, cooling coils placed โ€ฆ

  5. Question 5Sound ยท 8 marks

    (a) Fig. 5.1 is a diagram showing the arrangement of air particles as a longitudinal wave passes through them. Fig. 5.1 (i) On Fig. 5.1, mark the centre of a compression with the letter C, and mark the centre of โ€ฆ

  6. Question 6Electric circuits ยท 10 marks

    A student sets up a circuit to determine the resistance of a length of wire. The circuit contains a battery of unknown e.m.f., a length of a wire used to make a resistor X, an ammeter, a voltmeter and a โ€ฆ

  7. Question 7Electromagnetic effects ยท 9 marks

    Fig. 7.1 shows an alternating current (a.c.) power supply connected to a transformer. primary coil secondary coil output voltage iron core power supply Fig. 7.1 (a) Explain how an alternating current in the primary coil produces an alternating output voltage. โ€ฆ

  8. Question 8Nuclear model of the atom ยท 11 marks

    Plutonium-239 (23 9 9 4Pu) is an isotope that is used as the fuel in some nuclear reactors. (a) State the names of the types of particles found in a nucleus of plutonium-239, and state how many there are of โ€ฆ

  9. Question 9Stars & the Universe ยท 10 marks

    (a) The life cycle of a star begins with a large cloud of dust and gas which collapses. Five later stages of the life cycle of a very massive star are: black hole protostar red supergiant stable star supernova Place โ€ฆ

Other Physics papers from May/June 2025

Questions students ask

Where can I get the 5054/21 May/June 2025 mark scheme?
Open the mark scheme above - it is the official Cambridge scheme for this exact paper (5054_s25_ms_21), and on a wide screen it sits beside the question you are reading.
What was the grade threshold for an A in 5054/21 May/June 2025?
46 marks out of 80, a C needed 23.
Which topics came up in 5054/21 May/June 2025?
Mostly Nuclear model of the atom, Electric circuits, Stars & the Universe. The full list is in the table above.
Do I need an account to open 5054/21 May/June 2025?
No. Every paper opens for free without signing in. A free account also saves your pen marks and records your score against the grade thresholds.