Uniform Circular Motion Lab

# Uniform Circular Motion Lab - Uniform Circular Motion Lab...

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Uniform Circular Motion Lab Introduction Uniform circular motion is defined as the motion of an object travelling at a constant (uniform) speed on a circular path. There are several terms that can be applied to the study of uniform circular motion. A cycle can be defined as one complete motion around the circle. The period ( T ) of the motion can be defined as the time required to complete one complete cycle of the motion. Since this is a unit of time, the standard unit of time would be the second. The frequency ( f ) of motion can be defined as the number of complete cycles per second. The unit used to measure frequency is the hertz (Hz), named after the scientist Heinrich Hertz (1857- 94). One hertz is one cycle per second. The period of motion and the frequency of motion are inverses of each other. = = = frequency cyclestime f 1T = = = Period timecycles T 1f To determine the speed of any object moving in uniform circular motion, we can use: = v 2πrT = or v 2πrf At any time in uniform circular motion, the direction of the velocity is tangent to the circle.

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