Physics A-Level
Vacuum speed of electromagnetic waves
What Vacuum speed of electromagnetic waves means in Physics A-Level, as defined for AQA.
Definition of Vacuum speed of electromagnetic waves
Check what you remember
Read the wording for your board, then hide it and explain Vacuum speed of electromagnetic waves in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
All electromagnetic waves travel at the same speed in a vacuum, c = 3.00 × 10⁸ m s⁻¹, regardless of frequency or wavelength.
Topics that use Vacuum speed of electromagnetic waves
- Longitudinal and transverse waves (AQA A-Level)
Related terms
- Classification of waves
- Compressions and rarefactions
- Evidence for transverse nature
- Longitudinal
- Longitudinal wave
- Polarisation
- Polarising filter
- Polaroid material
Using Vacuum speed of electromagnetic waves 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