4 physics lab

# 4 physics lab - Name: - Xiang Wang wangxian2@iit.edu -...

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Name: - Xiang Wang wangxian2@iit.edu - Antonis Antoniou antoant1@iit.edu - Seung Kwon Choi choimik@iit.edu Class: Physics-123 “Mechanics” TA: Ahn Paul Experiment 4 Conservation of Energy” Date of the Experiment: March, 10 th 2003

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Introduction Objective: This experiment contained 2 parts. The objective of Part A was to make up our own experimental procedure to observe how the potential energy of the launcher changes to kinetic energy of the glider and check if the force of friction is really negligible. 2 2 2 1 2 1 kx mv = The objective of part B was to make up our own experimental procedure to observe the way the potential energy of a launcher changes to gravitational potential energy of the projectile and then verify that the conservation of energy. mgd kx = 2 2 1 Theory: Part A: The equation that describes the relationship between the two energy forms is: 2 2 2 1 2 1 kx mv = Where (m) is the mass of the glider, (v) the glider’s speed, (k) is the spring constant and (x) is the displacement of the spring. The above equation assumes that the surface on which the glider is moving is frictionless and that there is no wind resistance. The above equation also assumes that the collision between the glider and the piston of the launcher is totally elastic. Part B: The equation that describes the relationship between the two energy forms is: mgd kx = 2 2 1 Where (k) is the spring constant, (x) is the displacement of the spring, (m) is the mass of the projectile, (g) is the acceleration of gravity and (d) is the maximum height the projectile reaches. The above equation assumes that there is no wind resistance and that the projectile is shot straight up. Methods and Materials
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## This note was uploaded on 03/03/2010 for the course PHYS 123 taught by Professor Laurent-muehleisen during the Spring '08 term at Illinois Tech.

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4 physics lab - Name: - Xiang Wang wangxian2@iit.edu -...

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