Space physics

The solar system and the Milky Way, the life cycle of a star, orbits and orbital speed, red-shift and the expanding universe, and what is still unknown.

Start: The solar system and the Milky WayAbout 20 min, free

Lessons

Practise and test

Mixed reviewQuestions mixed across your lessons.

By the end you can

Describe the bodies in the solar system and use standard form and light-years for distances in space
Describe the life cycle of a star and explain how the forces in a main sequence star balance
Explain how gravity keeps a satellite in orbit and use v = 2πr/T (beyond the specification)
Explain red-shift and use speed and distance data for galaxies as evidence for the Big Bang
Say what dark matter and dark energy are thought to explain
Explain how evidence moved the model of the solar system from geocentric to heliocentric, and why some telescopes are in space (Edexcel)

Revision notes

The solar system and the life cycle of a star

Specifications

AQA 8463 (Physics) 4.8
Pearson Edexcel 1PH0 (Physics) Topic 7
OCR Gateway J249 (Physics) P8.2

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