simple pendulum lab

# simple pendulum lab - Simple Pendulum Lab Mark Wojoski...

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Simple Pendulum Lab Mark Wojoski – 249736331 Justin Lyles – PHYS 211 Monday 12:20 27 February 2006 Abstract: In this lab, we measured the period of a simple pendulum at many different lengths. We measured the period by dropping a bob through a photogate that measured the time for the pendulum to complete one cycle. The periods were calculated for two bobs of different masses at various lengths. We found, regardless of the weight of the bob, that the period of the simple pendulum increases with an increase in length.

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Introduction: A simple pendulum can be seen anywhere from a old clock with an arm that swings back and forth to a tennis ball tied to the end of a string with the other end of the string in a fixed location. When you set the tennis ball in motion, it is easy to see that the motion of the ball is periodic, that is, motion that repeats itself. This periodic motion seen in a simple pendulum can be explained by a bob of mass m that is suspended from the end of a massless string of length L that is fixed at the other end. To understand the relationship between the period and the length of a simple pendulum, we must first consider the forces that are acting on the simple pendulum. There is a force T from the string of the pendulum, and there is a force W from the gravity acting on the mass. Through these forces an equation for the period of a simple pendulum is produced: T = 2π*√(l/g), where T is the period in seconds, l is the length of the string in meters, and g is the gravity. From this equation, a relationship between the period and the length of a simple pendulum is established. Procedure:
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## This note was uploaded on 04/09/2008 for the course PHYS 211-212 taught by Professor Dontknow during the Spring '08 term at South Carolina.

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simple pendulum lab - Simple Pendulum Lab Mark Wojoski...

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