May/June 2026 Paper 42

2026 · 11 questions · 41 parts · 80 marks

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1(a)(i)1(a)(ii)1(b)(i)1(b)(ii)

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2(a)(i)2(a)(ii)2(b)(i)2(b)(ii)

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3(a)(i)3(a)(ii)3(a)(iii)3(b)

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4(a)4(b)(i)4(b)(ii)4(b)(iii)

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7(a)(i)7(a)(ii)7(b)

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8(a)(i)8(a)(ii)8(b)(i)8(b)(ii)8(b)(iii)

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9(a)(i)9(a)(ii)9(b)9(c)

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10(a)(i)10(a)(ii)10(a)(iii)10(b)

–/8 mks

11(a)11(b)11(c)(i)11(c)(ii)

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7(a)(i)Motor Effect Electric MotorsEasy3 marks

Figure 7.1 shows a simplified diagram of a loudspeaker.

Figure 7.1, a simplified loudspeaker: a coil wound on the central N pole of a magnet with S poles above and below, attached to a cone

Complete the sentences to describe and explain how a loudspeaker produces sound.

A changing magnetic field is produced by the in the coil. This magnetic field interacts with the magnetic field due to the . This causes the cone to vibrate. The vibration of the transfers energy to a student as sound.

7(a)(ii)Wave Properties Wave BehaviourEasy2 marks

A sound of frequency 440 Hz is produced by the loudspeaker. The speed of the sound is 340 m / s. Calculate the wavelength of this sound. State the unit.

Unit

7(b)Sound Doppler EffectEasy1 mark

Define ‘ultrasound’.