CAIE IGCSE Physics 3.4.4 A medium is needed to transmit sound
Practise explaining why sound needs matter to travel, using contexts such as space, the Sun and comparisons with light.
- Syllabus
- 2026–2028
- Course
- Physics 0625
Exam points
- explain why sound from the Sun is not heard on Earth but light is seen
- link absence of a medium in space to sound waves not being transmitted
3.4.4—A medium is needed to transmit sound question 1
[Maximum number: 1]
We can see light from the Sun but we cannot hear any sound from it.
State the reason for this.
light does not need a medium to travel through OR sound needs a medium to travel through (and there is no medium between Sun and Earth)
B1
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