Difference between revisions of "Gravitational Field Strength"
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|+ Gravitational Field Strength on the Surface of Different Celestial Objects | |+ Gravitational Field Strength on the Surface of Different Celestial Objects | ||
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| style="height:20px; width:200px; text-align:center;" |'''[[Mercury]]''' | | style="height:20px; width:200px; text-align:center;" |'''[[Mercury]]''' | ||
| style="height:20px; width:200px; text-align:center;" |'''[[Venus]]''' | | style="height:20px; width:200px; text-align:center;" |'''[[Venus]]''' | ||
| style="height:20px; width:200px; text-align:center;" |'''[[Earth]]''' | | style="height:20px; width:200px; text-align:center;" |'''[[Earth]]''' | ||
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|[[File:Mercury.png|center|150px]] | |[[File:Mercury.png|center|150px]] | ||
|[[File:Venus.png|center|150px]] | |[[File:Venus.png|center|150px]] | ||
|[[File:Earth.png|center|150px]] | |[[File:Earth.png|center|150px]] | ||
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|- | |- | ||
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| style="height:20px; width:200px; text-align:center;" |4N/kg | | style="height:20px; width:200px; text-align:center;" |4N/kg | ||
| style="height:20px; width:200px; text-align:center;" |9N/kg | | style="height:20px; width:200px; text-align:center;" |9N/kg | ||
| style="height:20px; width:200px; text-align:center;" |10N/kg | | style="height:20px; width:200px; text-align:center;" |10N/kg | ||
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| + | | style="height:20px; width:200px; text-align:center;" |'''[[The Moon]]''' | ||
| style="height:20px; width:200px; text-align:center;" |'''[[Mars]]''' | | style="height:20px; width:200px; text-align:center;" |'''[[Mars]]''' | ||
| style="height:20px; width:200px; text-align:center;" |'''[[Jupiter]]''' | | style="height:20px; width:200px; text-align:center;" |'''[[Jupiter]]''' | ||
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|[[File:Mars.png|center|150px]] | |[[File:Mars.png|center|150px]] | ||
|[[File:Jupiter.png|center|150px]] | |[[File:Jupiter.png|center|150px]] | ||
|[[File:Saturn.png|center|150px]] | |[[File:Saturn.png|center|150px]] | ||
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| style="height:20px; width:200px; text-align:center;" |4N/kg | | style="height:20px; width:200px; text-align:center;" |4N/kg | ||
| style="height:20px; width:200px; text-align:center;" |20N/kg | | style="height:20px; width:200px; text-align:center;" |20N/kg | ||
| style="height:20px; width:200px; text-align:center;" |10N/kg | | style="height:20px; width:200px; text-align:center;" |10N/kg | ||
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| + | | style="height:20px; width:200px; text-align:center;" |'''[[Saturn]]''' | ||
| + | | style="height:20px; width:200px; text-align:center;" |'''[[Uranus]]''' | ||
| + | | style="height:20px; width:200px; text-align:center;" |'''[[Neptune]]''' | ||
| + | |- | ||
| + | |[[File:Uranus.png|center|150px]] | ||
| + | |[[File:Neptune.png|center|150px]] | ||
| + | |[[File:TheMoon.png|center|150px]] | ||
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| style="height:20px; width:200px; text-align:center;" |9N/kg | | style="height:20px; width:200px; text-align:center;" |9N/kg | ||
| style="height:20px; width:200px; text-align:center;" |10N/kg | | style="height:20px; width:200px; text-align:center;" |10N/kg | ||
| + | | style="height:20px; width:200px; text-align:center;" |2N/kg | ||
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| + | | style="height:20px; width:200px; text-align:center;" |'''[[The Sun]]''' | ||
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| + | |[[File:TheSun.png|center|150px]] | ||
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| + | | style="height:20px; width:200px; text-align:center;" |300N/kg | ||
|} | |} | ||
Revision as of 09:18, 12 March 2019
Contents
Key Stage 3
Meaning
Gravitational Field Strength is the force on an object per kilogram in a gravitational field.
About Gravitational Field Strength
- On Earth gravitational field strength is roughly 10 Newtons for each kilogram of mass (10N/kg).
- Different objects have different gravitational field strengths.
Examples
| Mercury | Venus | Earth |
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| 4N/kg | 9N/kg | 10N/kg |
| The Moon | Mars | Jupiter |
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| 4N/kg | 20N/kg | 10N/kg |
| Saturn | Uranus | Neptune |
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 |
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| 9N/kg | 10N/kg | 2N/kg |
| The Sun | ||
 | ||
| 300N/kg |
Key Stage 4
Meaning
Gravitational Field Strength is the force on an object per kilogram in a gravitational field.
About Gravitational Field Strength
- At sea level on Earth the gravitational field strength is 9.8 Newtons for each kilogram of mass (9.8N/kg).
Gravitational Field Strength depends on:
- The mass of the moon, planet or star - The larger the mass the greater the gravitational field strength.
- Distance from the centre of mass of the moon, planet or star - The larger the distance the smaller the gravitational field strength.
| The Sun | Mercury | Venus | Earth | The Moon |
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| 290N/kg | 3.7N/kg | 8.8N/kg | 9.8N/kg | 1.7N/kg |
| Mars | Jupiter | Saturn | Uranus | Neptune |
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| 3.7N/kg | 24N/kg | 11N/kg | 9.0N/kg | 12N/kg |