plumiHow do electric motors work?: OCR GCSE Combined Science B questions
Every OCR GCSE Combined Science B exam question on P3.5 How do electric motors work?, 2018–2025, with its mark scheme and examiner’s report.
Paper
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Calculations
Q9(a)
The whole paper ↗
Q9(b)
The whole paper ↗Q9(c)(i)
The whole paper ↗Q11(a)
The whole paper ↗
Q11(b)(i)
The whole paper ↗Q11(b)(ii)
The whole paper ↗Q11(c)
The whole paper ↗Q11(d)
The whole paper ↗Q7(b)(i)
The whole paper ↗
Q7(b)(ii)
The whole paper ↗Q7(c)
The whole paper ↗Q11(b)
The whole paper ↗
Q11(c)
The whole paper ↗
All 14 questions on How do electric motors work?, as a list
- June 2024, Physics Paper 7 Higher, Q9(a) (2 marks): When the power supply is switched on, the copper wire moves to the left as shown. Explain why the wire moves to the left. Use Fleming’s left hand rule. [2]
- June 2024, Physics Paper 7 Higher, Q9(b) (2 marks): Suggest two ways in which the student could increase the force applied to the copper wire. 1 2 [2]
- June 2024, Physics Paper 7 Higher, Q9(c)(i) (3 marks): Calculate the length of the copper wire between points A and B. Use the equation: force = magnetic flux density × current × length of conductor Length = m [3]
- June 2022, Physics Paper 7 Higher, Q11(a) (2 marks): Fig. 11.1 shows a left hand. Complete all the labels to show how you can use your left hand to determine the direction of the force on a conductor in a magnetic
- June 2022, Physics Paper 7 Higher, Q11(b)(i) (2 marks): Complete the sentences to describe the behaviour of the conductor when the current is switched on. Put a ring around each correct option. The conductor moves to
- June 2022, Physics Paper 7 Higher, Q11(b)(ii) (1 mark): The power supply to the conductor is changed from direct current (d.c.) to alternating current (a.c.). What happens when the current is switched on? Tick (3) on
- June 2022, Physics Paper 7 Higher, Q11(c) (2 marks): A rectangular coil is placed in a magnetic field, as shown in Fig. 11.3. Coil Magnets Current Fig. 11.3 • A d.c. current in the coil is switched on. • The coil
- June 2022, Physics Paper 7 Higher, Q11(d) (3 marks): In a motor the coil is connected so that it continues to turn. Complete the sentences about the energy transferred in the motor. Use words from the list. chemic
- November 2021, Physics Paper 7 Higher, Q7(b)(i) (1 mark): Add an arrow to Fig. 7.2 showing the direction of the force on the current-carrying conductor. [1]
- November 2021, Physics Paper 7 Higher, Q7(b)(ii) (2 marks): Describe how you worked out the direction. You may use a diagram. [2]
- November 2021, Physics Paper 7 Higher, Q7(c) (2 marks): Fig. 7.3 shows part of an electric motor. It has a rectangular coil of current-carrying wire between two magnetic poles. Magnets Axle North South Current Rotati
- November 2020, Physics Paper 7 Higher, Q11(b) (3 marks): Beth places a wire between the poles of a magnet. The diagram shows a view of the poles of the magnet and the wire from above. Wire N S Pole of Pole of magnet D
- November 2020, Physics Paper 7 Higher, Q11(c) (4 marks): When Beth sets the current in the wire to 5.6 A there is a force of 0.072 N on the wire. The wire has a length of 0.45 m. Calculate the magnetic flux density. U
- June 2019, Physics Paper 7 Higher, Q10 (2 marks): The diagram shows a copper rod in a magnetic field. magnetic field N S 0.63 N copper rod The copper rod is 0.25 m long and weighs 0.63 N. The entire length of t
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