Question 29
Question 29 of 40
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No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
2. Thermal physics
2.1.1. States of matter

Know the terms for the changes in state between solids, liquids and gases (gas to solid and solid to gas transfers are not required)

3. Waves
3.4. Sound

Know that, in general, sound travels faster in solids than in liquids and faster in liquids than in gases