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0625/03/SP/23 · question 2 of 2 in this topic

Question 9

9(a)(i)1 mark

Fig. 9.1 shows some parts of the electromagnetic spectrum.

In Fig. 9.1, one part of the electromagnetic spectrum is not labelled. State the name of this part.

Fig. 9.1 — see the question text for what it shows

State A short answer. No explanation is needed, and adding one cannot earn extra marks.

Your answer

Suggested time: 2 min

9(a)(ii)1 mark

The speed of visible light waves in a vacuum is 3.0 × 10⁸ m/s.

State the value for the speed of infrared waves in a vacuum.

State A short answer. No explanation is needed, and adding one cannot earn extra marks.

Your answer

Suggested time: 2 min

9(a)(iii)1 mark

Some parts of the electromagnetic spectrum have a wavelength shorter than that of visible light.

State one example.

State A short answer. No explanation is needed, and adding one cannot earn extra marks.

Your answer

Suggested time: 2 min

9(b)(i)2 marks

X-rays and γ-rays are used in hospitals.

Describe one medical use for X-rays and one medical use for γ-rays.

Describe Say what happens, in order. Reasons are not required unless the question also asks why.

Your answer

Suggested time: 3 min

9(b)(ii)2 marks

State two reasons why γ-rays are dangerous to living things.

State A short answer. No explanation is needed, and adding one cannot earn extra marks.

Your answer

Suggested time: 3 min

0625/03/SP/23Cambridge IGCSE Physics 0625 · Specimen 2023 · Paper 3 · sit the whole paper