Physics A-Level
Virtual particles
What Virtual particles means in Physics A-Level, as defined for AQA.
Definition of Virtual particles
Check what you remember
Read the wording for your board, then hide it and explain Virtual particles in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
A particle emits one, which is absorbed by another, transferring momentum; such particles exist only during the interaction.
Topics that use Virtual particles
- Particle interactions (AQA A-Level)
Related terms
- Conservation laws at vertices
- Electromagnetic force
- Exchange particles as carriers of forces
- Fundamental interactions
- Range and strength
- Virtual photons
- Weak and electromagnetic interactions
- Exchange particles
Using Virtual particles in the exam
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