A-LevelPhysicsThermodynamics9702/12 · Oct/Nov 2013 · Q161 Mark

What is the internal energy of a system?

Athe amount of heat supplied to the system

Bthe random energy of the atoms of the system

Cthe total kinetic energy of the system

Dthe total potential energy of the system

✓ Correct answer

B: the random energy of the atoms of the system

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Topic: Thermodynamics, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2013 Paper 1 Variant 2, question 16.

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