Learning objective

Calculate the time required for light to travel significant distances, such as between objects within the Solar System.

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 Solar System, especially The Solar System outcomes.
You need to be able to calculate the time required for light to travel significant distances, such as between objects within the Solar System.
The key ideas to know are Calculate and Determine.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

CalculateDetermine

Why it matters

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

Revision tools

Flashcards10 linked cards

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Practice Questions7 linked questions

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0 of 5 attempted

Paper 3Theory (Core)3 marks

Description

Calculate the time it takes for light to travel from the Sun to Mars, which is approximately 2.28 x 10^11 meters away.

a
Calculate the time taken for light to travel from the Sun to Mars.
Your answer
Aim for approximately 3 distinct marking points.
[3]

Revision notestopic notes

Open the full topic revision notes when you are ready to review this objective in context.

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