Physics GCSE
Speed of recession and distance
What Speed of recession and distance means in Physics GCSE, as defined for OCR.
Definition of Speed of recession and distance
Check what you remember
Read the wording for your board, then hide it and explain Speed of recession and distance in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
The more distant a galaxy is, the faster it recedes, and the faster the recession, the greater the red-shift.
Topics that use Speed of recession and distance
- Beyond Earth (OCR GCSE)
Related terms
- Absorption and emission of radiation
- Artificial satellites: geostationary and polar orbits
- Constant speed with changing direction
- Cosmic microwave background radiation
- Effect of the atmosphere on electromagnetic radiation
- Equilibrium between collapse and expansion
- Gravitational force towards the centre
- Greenhouse effect and Earth's temperature
Using Speed of recession and distance 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 GCSE termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge