CODE AND TITLE OF COURSEWORK Course code: MECH1008 Title: OSCILLATION OF A TORSIONAL PENDULUM

STUDENT NAME: CHEW KOK HAO, DANIEL

DEGREE AND YEAR: MENG IN MECHANICAL ENGINEERING

LAB GROUP: 1

DATE OF LAB. SESSION: 03 OCT 2011

DATE COURSEWORK DUE FOR SUBMISSION: 10 OCT 2011

ACTUAL DATE OF SUBMISSION: 09 OCT 2011

LECTURERS NAME: Dr. PAUL FROMME

PERSONAL TUTORS NAME: Dr. A R GREIG

RECEIVED DATE AND INITIALS:

I confirm that this is all my own work (if submitted electronically, submission will be taken as confirmation that this is your own work, and will also act as student signature)

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University College London, Torrington Place LONDON WC1E 7JE

CONTENTS

PAGE No. 1. Introduction......................................................... 2 1.1. Objectives................................................... 1.2. Background................................................. 2. Experimental Procedure...................................... 2.1. Apparatus.................................................... 2.2. Procedure.................................................... 3. Results................................................................. 2 2 2 2 2 3

3.1. Processing of Data....................................... 3 3.2. Analysis of Results....................................... 4 3.3. Error Analysis............................................... 6 4. Discussion of Results........................................... 7

4.1. Comparison with Theory............................... 7 4.2. Discussion.................................................... 8 5. Conclusions.......................................................... 8 6. References........................................................... 9

1

1.

Introduction

1.1. Objectives To investigate the harmonic motion of a torsional pendulum upon angular

References: Richard Fitzpatrick. 2006. Oscillatory Motion: The Torsion Pendulum. [ONLINE] Available at: http://farside.ph.utexas.edu/teaching/301/lectures/node139.html. [Accessed 09 October 2011]. Martin Tarr. 2011. Mechanical properties of metals. [ONLINE]Available at: http://www.ami.ac.uk/courses/topics/0123_mpm/index.html. [Accessed 09 October 2011]. Jim Crumley. 2011. Torsion Pendulum.[ONLINE] Available at: http://www.physics.csbsju.edu/~jcrumley/370/tp/torsion_pendulum.pdf. [Accessed 08 October 2011]. Gabriela Ines Gonzalez. 1995. Brownian Motion of a Torsion Pendulum Damped by Internal Friction.[ONLINE] Available at: http://www.ligo.caltech.edu/docs/P/P950023-00.pdf.[Accessed 07 October 2011]. Eric W. Weisstein. 2007. Eric Weisstein 's World of Physics: Torsional[ONLINE] Available at: http://scienceworld.wolfram.com/physics/TorsionalPendulum.html. [Accessed 09 October 2011]. Wikipedia, the free encyclopedia. 2011. Young 's modulus[ONLINE] Available at: http://en.wikipedia.org/wiki/Young%27s_modulus. [Accessed 07 October 2011]. Wikipedia, the free encyclopedia. 2011. Oscillation[ONLINE] Available at: http://en.wikipedia.org/wiki/Oscillation. [Accessed 07 October 2011]. Wikipedia, the free encyclopedia. 2011. Harmonic oscillator [ONLINE] Available at: http://en.wikipedia.org/wiki/Harmonic_oscillator. [Accessed 07 October 2011]. Wikipedia, the free encyclopedia. 2011. Torsion[ONLINE] Available at: http://en.wikipedia.org/wiki/Torsion_spring#Motion_of_torsion_balances_and_pendulums.[Acc essed 07 October 2011]. Engineeringtoolbox.com. 2011.Modulus of Rigidity[ONLINE] Available at: http://www.engineeringtoolbox.com/modulus-rigidity-d_946.html. [Accessed 07 October 2011]. Daytronic Corporation. 2011. High-Sensitivity Magnetic Pickup.[ONLINE] Available at: http://www.daytronic.com/products/trans/t-magpickup.htm. [Accessed 08 October 2011]. 9