Term
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Definition
| is the tendancy of a body at rest to stay at rest. and a body in motion to keep moving, in a straight line |
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Term
| newton's first law of motion |
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Definition
| a body continues in a state of rest or motion in a straight line at a constant speed unless made to change that state by forces acting on it. |
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Term
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Definition
| any change in speed and direction |
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Term
| Newton's 2nd law of motion. |
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Definition
| the amount of acceleration (a) that a force (f) can produce depends on the mass (m) of the object being accelerated. |
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Term
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Definition
| Every mass exerts a force on every other mass. the strenght of the force is directly proportional to the product of the masses divided by the square of their seperation. |
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Term
| Newton's third law of motion |
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Definition
| when two objects interact they create equal and opposite forces on each other. |
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Term
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Definition
| measures the gravitional attraction at a planets or star's surface. |
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Term
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Definition
| an easily identified grouping of stars often a part of a larger constellation |
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Term
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Definition
| line East and West of a star chart |
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Term
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Definition
| "RA" the north and south lines of a star chart. |
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Term
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Definition
| is an objects angle above the horizon. |
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Term
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Definition
| when a planet lies in the sky with the direction as the sun. |
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Term
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Definition
| planet lies between us and the sun. |
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Term
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Definition
| a planet is on the other side of the sun. |
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Term
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Definition
| when a planet moves in front of the sun and is silhoutted by the sun. |
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Term
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Definition
| when a planet is directly opposite the sun in the sky. |
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