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8 Cards in this Set
- Front
- Back
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Projectile |
Any object that moves through the air or through space under the influence of gravity. |
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Parabola |
The curved path followed by a projectile under the influence of only constant gravity. |
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Satellite |
A projectile or small celestial body that orbits a larger celestial body. |
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Ellipse
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A regular oval shape, traced by a point moving in a plane so that the sum of its distances from two other points (the foci) is constant, or resulting when a cone is cut by an oblique plane that does not intersect the base. |
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Kepler's 1st Law |
The path of each planet around the sun is an ellipse with the Sun at one focus. |
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Kepler's 2nd Law: |
The line from the Sun to any planet sweeps out equal areas of space in equal time intervals. |
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Kepler's 3rd Law |
The square of the orbital period of a planet is directly proportional to the cube of the avberage distance of the planet from the Sun. |
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Escape Speed |
The speed that a projectile, space probe, or similar object must reach to escape the gravitatioal influence of Earth or another celestial body to which it is attracted. |
