physicslab5

# physicslab5 - Lab 5 WorkEnergy Staci Williams Kevin...

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Lab 5: Work- Energy Staci Williams Kevin Schesing Section 011 Performed October 15, 2009 Due October 23, 2009 1

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Objective: The objective of this lab is to investigate the validity of the work- energy relationship. Description: 3 Does Work=Change in KE A glider is on the horizontal air track connected to a string that goes over the smart pulley, which is attached to 4 rubber bands that are connected in series. The last rubber band is attached to the force sensor, which is clamped to a rod attached to the floor. The glider is pulled back to stretch the rubber bands and is let go to measure the force and velocity, which gives work which can be compared to the calculated change in kinetic energy. 4 W=Change in KE Applied to a System A horizontal string is attached to a glider on the horizontal air track, run over the smart pulley, and attached to a mass on the end. The glider is let go and the velocity is measured as a function of distance, which allows for the KE to be calculated for each mass and the entire system. The work done on each mass and the system can be calculated too. Theory: Newton’s 2 nd Law states the vector of the net force is equal to mass times the vector of acceleration. This is integrated over position from the initial to final position. KE is equal to 1/2mv^2, and the net work (must include all work done by the forces) done on a mass between
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physicslab5 - Lab 5 WorkEnergy Staci Williams Kevin...

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