“gravitational potential energy”的概念、定义、翻译、参考文献-科学参考

gravitational potential energy

Mathematics

The potential energy associated with the gravitational force. When $F = - \frac{G M m}{r^{3}} r$ , as in the inverse square law of gravitation, it can be shown that the gravitational potential energy V = −GMm/r + constant. When F = −mgk, as may be assumed near the Earth’s surface, V = mgz + constant.

Space Exploration

The energy possessed by an object when it is placed in a position from which, if it were free to do so, it would fall under the influence of gravity. If the object is free to fall, then the gravitational potential energy is converted into kinetic (motion) energy. The gravitational potential energy E_p of an object of mass m kilograms placed at a height h metres above the ground is given by the formula:
$E_{p} = mgh$
where g is the gravitational field strength (in newtons per kilogram) of the Earth at that place.
In a hydroelectric power station, gravitational potential energy of water held in a high-level reservoir is used to drive turbines to produce electricity.

Geology and Earth Sciences

The energy that would be needed to move a massive body against the gravitational force exerted by the Earth’s gravitational field.

单词	gravitational potential energy
释义	gravitational potential energy Mathematics The potential energy associated with the gravitational force. When $F = - \frac{G M m}{r^{3}} r$ , as in the inverse square law of gravitation, it can be shown that the gravitational potential energy V = −GMm/r + constant. When F = −mgk, as may be assumed near the Earth’s surface, V = mgz + constant. Space Exploration The energy possessed by an object when it is placed in a position from which, if it were free to do so, it would fall under the influence of gravity. If the object is free to fall, then the gravitational potential energy is converted into kinetic (motion) energy. The gravitational potential energy E_p of an object of mass m kilograms placed at a height h metres above the ground is given by the formula: $E_{p} = mgh$ where g is the gravitational field strength (in newtons per kilogram) of the Earth at that place. In a hydroelectric power station, gravitational potential energy of water held in a high-level reservoir is used to drive turbines to produce electricity. Geology and Earth Sciences The energy that would be needed to move a massive body against the gravitational force exerted by the Earth’s gravitational field.
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