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| movement of object or particle trajectory at constant speed around circle with fixed radius |
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| center-seeking acceleration of object moving in circle at constant speed |
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| net force exerted toward center of circle giving object centripetal acceleration |
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| planets move in elliptical paths with sun at one focus |
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| imaginary line from sun to planet sweeps out equal areas in equal time intervals |
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| square of the ratio of the periods of 2 planets equals the cube of the ratio of their average distance from the sun |
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| attractive force between 2 objects that is directly proportional to the mass of the objects |
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| law of universal gravitation |
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| gravitational force between 2 objects is directly proportional the the product of their masses and inversely proportional the square of the distance between their centers |
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| surrounds object with mass; equals universal gravitational constant times the mass of the object, divided by the square of the distance from the object's center |
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| measure of object's resistance to force |
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| size of gravitational force between 2 objects |
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| change in angles as object rotates |
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| angular displacement of object divided by the time needed to make the displacement |
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| change in angular velocity divided by the time needed to make the change; measured in rad/sec. squared |
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| perpendicular distance from axis of rotation to point where force is exerted |
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| measure of how effectively force causes rotation; equals force times the lever arm |
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| Newton's 2nd law for rotational motion |
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| angular acceleration directly proportional to net torque and inversely prop. to moment of inertia |
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| point on object that moves the same way that a point particle would move |
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| apparent force that seems to pull on moving object but does not exert physical outward push on it and is observed only in rotating frames of reference |
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| apparent force that seems to deflect a moving object from its path and is observed only in rotating frames of reference |
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| motion repeating in regular cycle |
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| motion occurring when restoring force on object is directly proportion to the object's displace from equilibrium |
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| time required for object to repeat 1 complete cycle of motion |
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| in periodic motion, the max. distance object moves from equilibrium |
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| force on spring directly proportional to amount spring stretched |
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| device demonstrating simple harmonic motion when its bob, suspended by a string of light rod, is pulled to 1 side and released, causing it to swing back and forth |
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| form of simple harmonic motion occurring when small forces applied at regular intervals to oscillating or vibrating object and the amplitude of the vibration increases |
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