Physics
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Anonymous
ID:
202647
Filename:
Physics
Updated:
2013-02-22 19:36:11
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Vocab
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Physics Vocab
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Acceleration directed toward the center of a circular path
Centripetal Acceleration
The motion of a body when only the fource of gravity is acting on it
Freefall
Motion of an object revolving about a single axis
Circular motion
the speed of an object in circular motion
Tangential speed
T^2=r^3
Kepler's 3rd Law
Motion of an object when tangential speed is constant
Uniform Circular Motion
Force that causes centripetal acceleration
Centripetal Force
The mutual force of attraction between particles of matter
Gravitational Force
The speed needed to "break free" from a gravitational field.
Escape Velocity
An object whose escape velocity is greater than the speed of light
Black Hole
Each planet travels in an elliptical orbit around the sun, and the sun is at one of the focal points.
Keplers 1st law
The line about which circular motion occurs.
Axis of rotation
The time it takes to complete one cycle of revolution or wave oscillation
Period
The product of the force and the lever arm
Torque
One of six types of machines designed to make work easier
Simple Machine
Perpendicular distance from the axis of rotation to a line drawn along the direction of force
Lever Arm
an imaginary line drawn from the sun to any planet sweeps out equal areas in equal time periods
Kepler's 2nd law
An object that revolves around a central body.
Satellite
A device that changes the force needed to do work
Machine