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| object with mass is surrounded by this. Another object experiences a force due to the interaction between its mass and the gravitational force |
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| the mass related to inertia of an object |
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| mass determines the amount of gravitational force between two objects |
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| movement of an object or particle trajectory at a constant speed around a circle with a fixed radius |
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| an object's acceleration wich always points towards the center and is in uniform circular motion |
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| the net force toward the center of the circle of an object moving in a circle |
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| the paths of the planets are ellipse with the sun at one focus |
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| an imaginary line from the sun to a planet sweeps out in equal areas in equal tine intervals |
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| the square ratio of the periods of any two planets revolving about the sun is equal to the cube of the ratio of their average distances from the sun |
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| the force of attraction between two objects must be proportional to the objects weight |
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| law of universal gravitation |
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| objects attract other objects with a force that is proportional to the product of their masses and inversely to the square of distance between them |
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| change in angle as object rotates |
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| angular displacement divided by time taken to make displacement |
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| change in angular velocity divided by the time taken to make the change |
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| measure of how effectively a force causes rotation |
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| Newton's 2nd law for roatational motion |
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| angular acceleration is directly proportional to net torque and inversely to moment of inertia |
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| the point on an object that moves in the same way that a point particle would move |
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| not a real force. The apparent outward force |
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| not real. We observe a deflection in horizantal motion when we are rotating in a frame refrence |
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| motions that repeat in regular cycles |
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motion that resultsif force that restores objects equilibrium is directly proprtional to the displactement of the object
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| time needed for object to repeat one comlpex cycle of motion |
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| maximum distance that object moves from equilibrium |
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| force exerted by a spring is directly proportional to the amount that the spring is stretched |
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| consists of a massive object ( bob ) suspended by a string |
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| occurs when small forces are applied at regular intervals to a vibrating object. Aplitude increases |
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