Learning objective

Understand that the Milky Way is one of countless galaxies that constitute the Universe, with a diameter of about 100,000 light-years.

Read the explanation, check the common trap, then practise with flashcards and questions.

Exam focus

Cambridge IGCSE PhysicsSpace physicsCore content

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Understand this objective

Quick explanation

This point belongs to The Universe, especially The Universe outcomes.
You need to be able to understand that the Milky Way is one of countless galaxies that constitute the Universe, with a diameter of about 100,000 light-years.
The key ideas to know are Know.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

Know

Why it matters

This objective helps connect The Universe outcomes to exam-style questions, flashcards, and revision notes for The Universe.

Revision tools

Flashcards10 linked cards

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Practice Questions7 linked questions

Question 1 of 7

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0 of 5 attempted

Paper 3Theory (Core)1 marks

Description

The Milky Way has a diameter of about 100,000 light-years and is part of the Local Group of galaxies.

a
State the diameter of the Milky Way.
Your answer
Aim for approximately 1 distinct marking point.
[1]

Revision notestopic notes

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