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LAB# 1 THE COMPUTER IN THE LABORATORY INTRODUCTION: Welcome to the Undergraduate Physics Laboratory at Temple University. As a student in the laboratory you will be conducting many experiments throughout your Physics course(s). In this experiment, you are introduced to several different measuring tools. These tools are a PC computer, interface, photogate, and basic kinematic equations. You will use these tools among many others to take numerous measurements. On the computer you will use the LoggerPro program to run experiments and analyze data. All of the experimental programs are found on the desktop of the computer in the Physics Labs folders. There you can also find spreadsheet applications for plotting and graphing your data. Along with the computer you will be also using several different sensors and probes to measure and collect data. Here, you will use a photogate. The Photogate has a beam of infrared light that travels from one side to the other. It can detect an object whenever this beam is blocked. The objective of this experiment is to learn to use the computer, interface and a photogate sensor to conduct a basic scientific experiment. Also, you will learn to plot and graph data using the spreadsheet application Excel . As an exercise, you will measure the acceleration of a freely falling body ( g ) using a Picket Fence and a Photogate. APPARATUS: PC computer Photogate LabPro interface Picket Fence Logger Pro If any of the apparatus is missing inform your TA immediately. PROCEDURE: You will drop a piece of clear plastic with evenly spaced black bars on it, called a Picket Fence. As the Picket Fence passes through the Photogate, the computer will measure the time from the leading edge of one bar blocking the beam until the leading edge of the next bar
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