GCSE Physics Notes

Notes on the Solar System - the planets and their properties.

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  • Created on: 29-05-12 08:28
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Emma Johnson 10K Physics 09/12/10
The Solar System
It orbits the Sun once every 88 day
It has 0 moons
Has a mass 5.5% of the Earth's (3.30e23 kg)
Has extreme temperatures (from -170oC at night, to
450oC during the day)
It rotates once every 59 days
Its largest feature is the Caloris Basin
It is the smallest of the 4 terrestrial planets, which
includes the Earth
It has no natural satellites and no substantial atmosphere
It is covered with thick clouds that creates a
greenhouse effect that makes it very hot
It has 0 moons
It has no magnetic field
It's temperature is about 500°C to - 32°C at the
Its atmosphere is 95% carbon dioxide, with mainly
nitrogen and sulphuric acid
It's surface is a rocky, dusty, waterless expanse of mountains, canyons, and plains,
with a 200-mile river of hardened lava
Besides the moon and sun, Venus is the brightest object in the sky
Venus is retrograde to Earth (rotates clockwise)
A day in Venus is 243 Earth days and is longer than its year of 225 days
Atmosphere: 78.084%: Nitrogen, 20.946% Oxygen, and
small parts of other gases
Has 1 natural satellite: The moon
1 year is 365 days; 1 day is 24 hours
71% of the Earth's surface is covered in water

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Emma Johnson 10K Physics 09/12/10
It consists of a gaseous atmosphere, the hydrosphere (all water on Earth), the
lithosphere, mantle, and core
The daily rotation of the Earth causes day and night
Is the only planet whose surface can be seen in detail from
Has 2 satellites (Phobos and Deimos)
Rotates every 24hrs and 37mins
Temperature: -140oC to 20oC
Year is equal to 1 earth year and 10.…read more

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Emma Johnson 10K Physics 09/12/10
It has 27 moons
Temperature: -197.15 C
Takes 84 years to complete an orbit
It's day is equal to 17 hours
It is a retrograde planet
Uranus' atmosphere is about 83% hydrogen, 15%
helium and 2% methane
Has 8 known satellites
1 year is 164.8 earth years
It's day is 0.67 of an earth day, at 16.…read more

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Emma Johnson 10K Physics 09/12/10
Earth's nearest natural satellite
1/80 of the Earth's mass
Rotates on its own axis in 27 days and 8hrs, which is
about the same amount of time it takes to orbit the
Escape velocity: 2.38km/s
It's surface is covered with craters, lava plains,
mountains and valleys and has no active volcanoes
It's temperature ranges from -171oC to 111oC
The lunar month is 29.…read more

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Emma Johnson 10K Physics 09/12/10…read more


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