Question 15
Question 15 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
2.2.3. Melting, boiling and evapora...

Describe melting and boiling in terms of energy input without a change in temperature

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)

1. Motion, forces and ene...
1.7.1. Energy

Know the principle of the conservation of energy and apply this principle to simple examples including the interpretation of simple flow diagrams