OCR GCSE PHYSICS A The Earth in the Universe

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I am grateful to OCR for permission to reproduce adapted versions of text from their 21st century Science Specification on this site. For the full version of the specification please see: OCR Physics A J635

MODULE P1: THE EARTH IN THE UNIVERSE

P1.1 What do we know about the Earth and space?

Rocks and the Earth's history
Rocks and the Earth's history (14- 16)

Age and internal structure of the Earth
Formation of the Solar System (14-16)
Earth's internal structure (14- 16)

The Solar System
Formation of the Solar System (14-16)
Astronomical words (11-14)
Comets (11- 14)
Solar system tour (11- 14)

Solar energy and nuclear fusion
Nuclear fusion (14-16)

Asteroid collision and the extinction of the dinosaurs
Asteroid collision (14-16)

The speed of light and a light year
Light and its effects (11-14)
Measuring astronomical distances (14-16)

The age of distant galaxies
Galaxies (11-14)
Astronomical distances (14-16)
Distance measurement in astronomy (16-19)

The sizes of the Earth, Sun and Milky Way
Planetary data (11-14)
Galaxies (11-14)

14-16/Astronomy/Problems/Earth in the Universe 1

P 1.2 Continental drift

Continental drift
Continental drift (14-16)

14-16/Astronomy/Problems/Earth in the Universe 2

Further information on section P1.2 will be added later

P1.3 Stars and galaxies

Relative brightness and the distances of stars
Measuring astronomical distances (14-16)
Distance measurement in astronomy (16-19)

Light pollution
Telescopes (11-14)

The Sun as a star in our galaxy
Galaxies (11-14)
Curtis_Shapley (14-16)

The life and death of stars
Life and death of stars (14-16)

14-16/Astronomy/Problems/Life and death of stars

Extraterrestrial life
Extraterrestrial life (14- 16)

The motion of the galaxies and the Doppler effect
14-16/Wave properties/Text/Doppler effect
Galactic speeds (14-16)
Hubble (16- 19)

The Big Bang and the origin of the Universe
Big Bang (14-16)
Universe flat open or closed (16- 19)

14-16/Astronomy/Problems/Earth in the Universe 3


Further information on section P1.4 will be added later