Physics GCSE
dark energy
What dark energy means in Physics GCSE, as defined for AQA.
Definition of dark energy
Check what you remember
Read the wording for your board, then hide it and explain dark energy in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
The term introduced for whatever is driving the accelerating expansion, because nothing in the existing physics explained it.
Topics that use dark energy
- Red-shift (physics only) (AQA GCSE)
Related terms
- absorption line spectra
- accelerating expansion
- dark mass and dark energy
- expanding universe
- increase in wavelength
- measuring distance
- receding galaxies
- red end of the spectrum
Using dark energy in the exam
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