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CAIE IGCSE Physics Magnetism Question Bank

Practise magnetic forces, induced poles, material choice, magnetisation and field diagrams, using compasses and line spacing to infer direction and strength.

Syllabus
2026–2028
Course
Physics 0625

Exam points

  • predict attraction, repulsion and induced polarity for magnets and magnetic materials
  • choose soft iron for temporary magnets and steel for permanent magnets from retention evidence
  • read or draw field-line direction and use closer line spacing to identify stronger fields

Covered syllabus points

4.1.1—Forces between magnetic poles and4.1.2—Induced magnetism4.1.3—Differences between the properties of4.1.4—Difference between magnetic and4.1.5—Magnetic field as a region in which a4.1.6—Pattern and direction of magnetic4.1.7—Direction of a magnetic field at a4.1.8—Plotting of magnetic field lines with4.1.9—Uses of permanent magnets and4.1.10—Magnetic forces are due to4.1.11—Relative strength of a magnetic field

4.1 Simple phenomena of magnetism question 1

[Maximum number: 6]

This question is about the magnetic fields around bar magnets. Fig. 7.1 shows two positions used by a student doing an experiment.

Fig. 7.1

Fig. 7.1

Question (a)

(a)

Fig. 7.2 shows a magnet, labelled magnet 1, placed on position 1.

Fig. 7.2

Fig. 7.2

On Fig. 7.2, draw lines to show the pattern of the magnetic field produced by magnet 1. Place arrows on the lines to show the direction of the field.

[ 3 ]

Question (b)

(b)

Magnet 1 is removed from position 1. Fig. 7.3 shows another magnet, labelled magnet 2, placed on position 2.

Fig. 7.3

Fig. 7.3

On Fig. 7.3, draw, at the right-hand end of position 1, a line with an arrow to show the direction of the magnetic field produced by magnet 2 .

[ 1 ]

Question (c)

(c)

Fig. 7.4 shows magnet 1 placed on position 1 and magnet 2 placed on position 2.

Fig. 7.4

Fig. 7.4

[ 2 ]

Question (i)

(i)

State the direction of the force that the N pole of magnet 2 exerts on the N pole of magnet 1.

[ 1 ]

Question (ii)

(ii)

Justify your answer to (c)(i).
[Total: 6]

[ 1 ]

4.1 Simple phenomena of magnetism question 2

[Maximum number: 5]

Fig. 7.1 shows a barrier at the entrance to a car park. The wooden barrier arm has a weight of 60 N which acts through the centre of gravity at the position shown on Fig. 7.1.

Fig. 7.1

Fig. 7.1

Question (a)

(a)

Fig. 7.2 shows a coil attached to a power supply placed below the soft iron bar A.

Fig. 7.2

Fig. 7.2

[ 5 ]

Question (i)

(i)

State and explain what happens to the wooden barrier arm when the switch in the coil circuit is closed.
statement
explanation

[ 3 ]

Question (ii)

(ii)

A student suggests that the soft iron bar A is replaced by a steel bar. Explain why a steel bar is less effective than a soft iron bar in the barrier.

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[ 2 ]
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