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: The '''gravitational field''' cause by an [[object]] is represented by [[Field Line|field lines]].
: The [[Field Line|field lines]] for a [[Gravitational Field|gravitational field]] around a single isolated [[object]] are generally [[Radial Field Line|radial]]. However, for very large [[sphere|spherical]] [[object]]s the [[Field Line|field lines]] can be approximated as [[Uniform Field Line|uniform]] for small regions close to the surface of that [[object]]. This is due to the gradual curvature of [[object]]s with large [[radius]].
===References===
====AQA====
:[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe09967 ''Gravitational fields, page 204, GCSE Combined Science; The Revision Guide, CGP, AQA '']
:[https://www.amazon.co.uk/gp/product/178294558X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=178294558X&linkCode=as2&tag=nrjc-21&linkId=f0dfb66dafcb0c6e9449e7b1a4ae1ac230 ''Gravitational fields, pages 12, 52, GCSE Physics; The Revision Guide, CGP, AQA '']
:[https://www.amazon.co.uk/gp/product/1782946403/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946403&linkCode=as2&tag=nrjc-21&linkId=32a0abb60dff015b15b50e9b1d7b4644 ''Gravitational fields, pages 26, 129, 130, GCSE Combined Science Trilogy; Physics, 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 ''Gravitational fields, pages 27, 149, 150, 170, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA '']