Gravitational field strength at a point in a gravitational field is the gravitational force per unit mass experienced by a body at that point
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Newtons law of gravitation
the force of attraction between two particles is inversely proportional to the square of their separation and directly proportional to the product of their masses
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Keplers 1st law
the orbit of a planet is an eclipse with the sun at one of the two foci
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Keplers 2nd law
A line segment joining a planet and the sun sweeps out equal areas during equal intervals of time
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Keplers 3rd Law
The square of the orbital period T is directly proportional to the cube of its average distance from the sun
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Gravitational Potential
the work done per unit mass to move an object to that point from infinity
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Gravitational Potential Energy
the work done to move the mass from infinity to that point in a gravitational field
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Escape Velocity
The velocity needed so an object has just enough Ek to escape a gravitational field
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Other cards in this set
Card 2
Front
Newtons law of gravitation
Back
the force of attraction between two particles is inversely proportional to the square of their separation and directly proportional to the product of their masses
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