Difference between revisions of "Galaxy"
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:[https://www.amazon.co.uk/gp/product/1782945970/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945970&linkCode=as2&tag=nrjc-21&linkId=a120d24dcc7cc7a58192069a3aafc1d2 ''Galaxies, pages 320, 322, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA ''] | :[https://www.amazon.co.uk/gp/product/1782945970/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945970&linkCode=as2&tag=nrjc-21&linkId=a120d24dcc7cc7a58192069a3aafc1d2 ''Galaxies, pages 320, 322, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA ''] | ||
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| + | :[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Galaxy, pages 274-5, 280, 289-293, GCSE Physics; Student Book, Collins, AQA ''] | ||
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| + | :[https://www.amazon.co.uk/gp/product/0198359837/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359837&linkCode=as2&tag=nrjc-21&linkId=3c4229e8b023b2b60768e7ea2307cc6f ''Galaxies, speed of, pages 236-237, Gateway GCSE Physics, Oxford, OCR ''] | ||
Latest revision as of 09:32, 11 December 2019
Contents
Key Stage 3
Meaning
A galaxy is a group of millions of stars held together by gravity.
About Galaxies
- Our home galaxy is called The Milky Way which contains around 400 billion stars.
- The nearest galaxy to The Milky Way is called the Andromeda galaxy and is 2,000,000 Light Years away.
- Galaxies are usually held together by a large Black Hole at the centre. The stars all orbit this central Black Hole.
- Scientists believe there are over 200 billion galaxies in the Universe.
Key Stage 4
Meaning
A galaxy is a group of millions of stars held together by gravity.
About Galaxies
- Our home galaxy is called The Milky Way which contains around 400 billion stars.
- The nearest galaxy to The Milky Way is called the Andromeda galaxy and is 2,000,000 Light Years away.
- Galaxies are usually held together by a large Black Hole at the centre. The stars all orbit this central Black Hole.
- Scientists believe there are over 200 billion galaxies in the Universe.
References
AQA
- Galaxies, page 250, GCSE Physics, Hodder, AQA
- Galaxies, pages 101, 102, GCSE Physics; The Revision Guide, CGP, AQA
- Galaxies, pages 320, 322, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA
- Galaxies; and red-shift, page 256, GCSE Physics, Hodder, AQA
- Galaxy, pages 274-5, 280, 289-293, GCSE Physics; Student Book, Collins, AQA