Physics GCSE
fixed orbits
What fixed orbits means in Physics GCSE, as defined for AQA.
Definition of fixed orbits
Check what you remember
Read the wording for your board, then hide it and explain fixed orbits in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
The certain fixed distances from the nucleus that electrons can only occupy, rather than any distance at all.
Topics that use fixed orbits
Related terms
- agreement with observations
- alpha particle scattering
- changing and replacing models
- concentrated positive charge
- discovery of the electron
- empty space
- energy levels
- experimental evidence
Using fixed orbits 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 GCSE termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge