Geopotential meter: Difference between revisions
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imported>Paul Wormer (New page: {{subpages}} A '''geopotential meter''' in the gravitational field of the Earth is the vertical distance over which one must lift one kilogram of mass to increase its poten...) |
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A '''geopotential meter''' in the [[gravitation|gravitational field]] of the Earth is the vertical distance over which one must lift one kilogram of mass to increase its potential energy by 9.80665 [[joule]]. On those places on Earth where the [[gravitational acceleration]] ''g'' happens to be equal to 9.80665 m/s<sup>2</sup>, the geopotential meter is exactly equal to the [[SI]] meter (in this context referred to as geometric meter). | A '''geopotential meter''' in the [[gravitation|gravitational field]] of the Earth is the vertical distance over which one must lift one kilogram of mass to increase its potential energy by 9.80665 [[joule]]. On those places on Earth where the [[gravitational acceleration]] ''g'' happens to be equal to 9.80665 m/s<sup>2</sup>, the geopotential meter is exactly equal to the [[SI]] meter (in this context referred to as geometric meter). | ||
Since ''g'' depends on altitude, the geopotential meter does too. For increasing altitudes the geopotential meter becomes increasingly larger than the geometric meter, because the gravitational force weakens with altitude, with the consequence that the same amount of energy can move a kilogram over larger distances. | Since ''g'' depends on altitude, the geopotential meter does too. For increasing altitudes the geopotential meter becomes increasingly larger than the geometric meter, because the gravitational force weakens with altitude, with the consequence that the same amount of energy can move a kilogram over larger distances.[[Category:Suggestion Bot Tag]] | ||
Revision as of 07:01, 21 August 2024
A geopotential meter in the gravitational field of the Earth is the vertical distance over which one must lift one kilogram of mass to increase its potential energy by 9.80665 joule. On those places on Earth where the gravitational acceleration g happens to be equal to 9.80665 m/s2, the geopotential meter is exactly equal to the SI meter (in this context referred to as geometric meter).
Since g depends on altitude, the geopotential meter does too. For increasing altitudes the geopotential meter becomes increasingly larger than the geometric meter, because the gravitational force weakens with altitude, with the consequence that the same amount of energy can move a kilogram over larger distances.