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Red Shift & Big Bang

Revise Red Shift & Big Bang in Space Physics for GCSE Physics with 13 exam-style questions and 12 flashcards. This topic appears regularly enough that it should be part of a solid GCSE revision cycle.

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The Universe is Running Away

Introduction 2

Red Shift — Light from a Moving Source

Deep Dive 3

Evidence for an Expanding Universe

Deep Dive 4

The Big Bang Theory

How It Works 5

Cosmic Microwave Background Radiation (CMBR)

Deep Dive 6

Evidence for the Big Bang — Summary

Comparison 7

Key Terms

Definitions 8

Key Facts

Key Facts 9

Common Misconceptions

Misconceptions 10

Memory Aids

Memory Aid 11

Higher Tier: Hubble's Law and the Age of the Universe

Higher Tier 12

Exam Focus — Red Shift and Big Bang

Exam Focus 13

Exam Tips for Red Shift and Big Bang

Exam Tips 14

Topic Summary: Red Shift and Big Bang

Summary

Sample Flashcards

What is red shift?

When a light source moves away from you, light waves are stretched to longer wavelengths, shifting towards the red end of the spectrum

What is blue shift?

When a light source moves towards you, waves are compressed, shifting towards the blue end of the spectrum

Sample Questions

What is the orbital period of a geostationary satellite?

A. 90 minutes
B. 12 hours
C. 24 hours
D. 7 days

1 markfoundation

Explain why a geostationary satellite stays above the same point on Earth's surface.

2 marksstandard

exam-style questions

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