Physics GCSE
Speed of light in a vacuum
What Speed of light in a vacuum means in Physics GCSE, as defined for OCR.
Definition of Speed of light in a vacuum
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Reference: OCR
The velocity at which all electromagnetic waves travel in space, approximately 3.0 × 10⁸ m/s.
Topics that use Speed of light in a vacuum
- The electromagnetic spectrum (OCR GCSE)
Related terms
- Communication and medicine
- Detection by instruments
- Electromagnetic spectrum
- Energy transfer by waves
- Fixed speed of electromagnetic waves
- Frequency matching between wave and circuit
- gamma ray
- High-energy end of the electromagnetic spectrum
Using Speed of light in a vacuum in the exam
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