AP Lab _5 atwood.doc - DSHS AP1 Physics Mathy Ch 4 Forces Lab#5 Atwood Demonstrator Do not write on this document Uniformly Accelerated Motion The

# AP Lab _5 atwood.doc - DSHS AP1 Physics Mathy Ch 4 Forces...

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DSHS AP1 Physics Mathy Do not write on this document Ch 4 Forces Lab #5 Atwood Demonstrator Uniformly Accelerated Motion: The Atwood Machine Newton's first law of motion states that objects at rest remain at rest unless an unbalanced force is applied. The second law of motion describes what happens if the resultant force is different from zero. If the acceleration is constant, the body is said to be moving with uniformly accelerated motion. The purpose of this experiment is to measure the acceleration of a given mass produced by a given force and compare it with that calculated from Newton's second law of motion. The Atwood machine consists of two weights connected by a light, flexible string which passes over a light pulley. The pulley should be nearly frictionless. The machine is used to measure the acceleration produced by an arbitrarily chosen force acting on a given mass. Using F = ma, the acceleration can be determined.
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