Physics A-Level

Quasar

What Quasar means in Physics A-Level, as defined for AQA.

Definition of Quasar

Check what you remember

Read the wording for your board, then hide it and explain Quasar in your own words. Rough notes are fine. This is a self-check, with no mark or grade.

Reference: AQA

An extremely luminous active galactic nucleus powered by accretion onto a supermassive black hole, often outshining its host galaxy.

AQA · Doppler effect (A-level only) (study guide)

Topics that use Quasar

Doppler effect (A-level only) (AQA A-Level)

Related terms

Using Quasar 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

A week of Premium from your first lesson · Then the free plan continues · No card, no charge

All Physics A-Level terms