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Space Physics

Cambridge IGCSE Physics (0625) · 6 topics

Earth, Moon & Sun

Day and Night The Earth rotates on its axis - an imaginary line through the North and South Poles - once every approximately 24 hours . Because light travels in…
The Solar System

Components of the Solar System The Solar System consists of the Sun and all the objects that orbit it. One star: the Sun Eight planets - in order from the Sun:…
Stars

The Sun as a Star The Sun is a star of medium size - one of approximately 200 billion stars in our galaxy. It is the closest star to Earth, located about 150…
Life Cycle of Stars

Life Cycle of a Star All stars form from clouds of gas and dust in space, then evolve over millions or billions of years. The eventual fate of a star depends…
The Universe

Structure of the Universe The Universe is everything that exists - all matter, energy, space and time. It is organised on a hierarchy of scales from planets, to…
Expanding Universe

Cosmic Microwave Background Radiation (CMBR) Cosmic Microwave Background Radiation (CMBR) Microwave radiation of a specific frequency that is observed at all…