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Definition
| rate at which an object's speed changes |
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| downward acceleration of a freely falling object near the Earth's surface. Described as 9.8 m/s^2 |
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Definition
| the first force that puts force against the reaction force |
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| the force on an oject moving in a curved path that is the inward force needed to cause this motion. |
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| easily recognized groups of stars. |
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| model of the universe that stated all planets, including Earth, rotated around the sun. The moons rotated around their given planets. |
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| oval shaped pattern, pattern followed by Earth around the sun |
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| points in an ellipse sorresponding to the positions of the tacks |
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Definition
| any influence that can cause an object to be accelerated |
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Definition
| what is changing when we say something is moving, meaning its position relative to something else |
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| explains gravity in a sense that it cannot be explained in terms of any other force. 1 of 4 fundamental forces. |
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Definition
| A scientific interpretation. Educated guess. |
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Definition
| resistance the object offers to any change in its state of rest or motion |
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Definition
| Standard SI unit for energy |
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Definition
| the paths of the planets around the sun are ellipses with the sun at one focus. |
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Definition
| A planet moves so that its radius vector sweeps out equal areas in equal times |
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| ratio between the square of the time needed by a planet to make a revolution around the sun and the cube of its average distance from the sun is the same for all the planets. |
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Definition
| Standard SI unit for mass |
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Definition
| General rule of science. Tells us what |
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Definition
| describes the attraction all bodies in the universe have for one another |
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Definition
| the property of matter that shows itself as inertia |
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Definition
| Standard SI unit for length |
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Definition
| simplified version of reality |
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Term
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Definition
| the line between the Earth and the moon is perpendicular to that between the sun and Earth, the tide-raising forces partly cancel, causing these. |
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Definition
| Standard SI unit for force |
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Definition
| states that every object in the universe attracts every other object with a force directly proportional to their mass and inversely proportional to the square of the distance separating them |
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Term
| Newton's First Law of Motion |
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Definition
| states that if no net force acts on an obect, that every object continues in it's state of uniform motion in a straight line or rest |
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Term
| Newton's Second Law of Motion |
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Definition
| states that when a net force acts on an object of mass, the object is given an acceleration in the same direction of the force. F=MA, A=F/M, M=F/A |
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Term
| Newton's Third Law of Motion |
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Definition
| states that when one object exerts a force on a second obect, the second object exerts an equal but opposite force on the first object. |
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Term
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Definition
| large heavenly bodies that make up the solar system. Named after Roman gods. |
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| model of the universe that stated the Earth as the center of the universe |
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| The second force that puts an equal, but opposite force against the Action Force |
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Definition
| International System of Measurement used most widely around the world. |
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Definition
| measurement that has magnitude only. Mass and speed are examples. |
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Definition
| a general scheme for gaining reliable information about the universe. |
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Definition
| Standard SI unit for time |
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Term
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Definition
| the amount of digits left to describe precision |
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Definition
| rate at which an object covers distance relative to a frame of reference |
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Definition
| Twice a month; when the sun, moon, and Earth are in a straight line, Solar tides add to Lunar tides to create especially high and low tides |
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Term
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Definition
| ambitious attempt to acount for what has been found in terms of how nature works. Tells us why |
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Definition
| periodic rise and fall of sea levels due to changes in gravitational pull of the moon and sun |
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Definition
| Standard quantities used in various measurement systems. |
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Definition
| has both magnitude and direction. Force and velocity are examples. |
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Definition
| specifies both the object's speed and the direction it is moving |
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| Standard SI unit for power |
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Definition
| gravitational force in which the Earth attracts an object |
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