Physics A-Level
Total internal energy
What Total internal energy means in Physics A-Level, as defined for AQA.
Definition of Total internal energy
Check what you remember
Read the wording for your board, then hide it and explain Total internal energy in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
For N atoms, U = (3/2)NkT, which also equals (3/2)nRT for n moles.
Topics that use Total internal energy
- Molecular kinetic theory model (A-level only) (AQA A-Level)
Related terms
- Brownian motion
- Collisions and resultant forces
- Conservation of momentum
- Elastic collision
- Empirical versus theoretical knowledge
- Gas laws from experiment
- Internal energy of an ideal gas
- Kinetic theory and observation
Using Total internal energy in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Physics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Physics A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge