IB Physics HL B.1.6 Internal Energy Question Bank
Practise HL internal-energy questions on gases, phase changes, molecular vibration and quantitative energy change in exam contexts.
- Syllabus
- First assessment 2025
- Course
- Physics HL
- Level
- HL
Exam points
- Analyse internal energy in ideal and real gases and phase changes using kinetic and intermolecular potential terms.
- Calculate internal-energy changes from mass, specific heat and temperature, then interpret phase-change energy.
- Compare molecular vibration, particle spacing and energy stores across solids, liquids and gases.
B.1.6—Internal energy question 1
[Maximum number: 2]
This question is in two parts. Part 1 is about gravitational force fields. Part 2 is about properties of a gas.
With respect to a gas, explain the meaning of the terms thermal energy and internal energy.
Thermal energy:
Internal energy:
Thermal energy: energy transferred between two objects at different temperatures.
Internal energy: total potential energy and random kinetic energy of the molecules/particles of the gas.
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