Physics A-Level
Excitation
What Excitation means in Physics A-Level, as defined for AQA.
Definition of Excitation
Check what you remember
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Reference: AQA
When an electron gains a specific amount of energy and moves to a higher energy level within the atom.
Topics that use Excitation
- Collisions of electrons with atoms (AQA A-Level)
Related terms
- Electron volt
- Energy levels
- Energy unit conversion
- Fluorescent tube
- Ionisation
- Numerical precision and significant figures
- Quantisation of charge and the elementary charge
- Unit conversion between atomic-scale and SI units
Using Excitation in the exam
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