physics 11411 hlab 1

# Physics 11411 hlab 1 - Measurement of g Lab Report Physics 11411 Hlab 1 Patrick Mooney Lab Partner Steven Bischoff Purpose We are asked to measure

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Measurement of “g” Lab Report Physics 11411, Hlab 1 September 17, 2010 Patrick Mooney Lab Partner: Steven Bischoff Purpose: We are asked to measure g , the acceleration due to Earth’s gravity, to a precision of 5%. Background: The measurement of the acceleration due to Earth’s gravity can simply be found by formula 1, which is g = ∆v∆t , where g is the acceleration due to Earth’s gravity in m/ s2 , and v is the change in the object’s velocity in m/s over a change in time t in seconds. In order to hopefully increase the precision of our results in solving for g, we did four separate experiments. Two of them, the measuring of the acceleration of a freely falling object using a motion sensor and a photogate, only required the use of formula 1. However, the measuring of a freely falling object using a spark apparatus running at approximately 60 Hz only gives the change in position over a set period of time. Because of this, one must know formula 2, which is v= ∆x∆t , where v is the magnitude of the velocity in m/s, and x is the change in position in meters over a change in time ∆t in seconds. Also, we measured the period of a pendulum in order to solve for g. A period is simply the time the pendulum takes to complete one oscillation. The period of a pendulum can be solved using formula 3, which is T=2 πLg , where T is the period of the pendulum in seconds, L is the length of the pendulum in meters, and g is the acceleration due to gravity in m/ s2 . Procedure: To find a precise measurement of g, we first found the period of a pendulum. We first set up the pendulum using some string and a wooden block, and we measured the length of the makeshift pendulum by using a meter stick. After that, we measured the time the pendulum took to

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## This note was uploaded on 10/05/2010 for the course PHYS PHYS201 taught by Professor Smith during the Spring '10 term at Mott Community College.

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Physics 11411 hlab 1 - Measurement of g Lab Report Physics 11411 Hlab 1 Patrick Mooney Lab Partner Steven Bischoff Purpose We are asked to measure

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