lab4_newton's_first_law.docx - Lab 4 Worksheet Name...

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Lab 4 Worksheet Name ____ ________ Newton’s First Law Section ______ Part 1: Confirmation of Newton’s First Law Tape two straws to a level surface in such a way that the ends of the straws stick out past the edge of the surface. Connect the following number of paper clips to either end of a single string: Left side of string: ____3_____ Right side of string: __3___ Get a second string and tie ___4____ number of paperclips to one end of the string and then connect the other end of the string to the center of the first string. (If your instructor does not specify the number of paperclips then choose a combination of paperclips and fill in the numbers above.) Place the string over your straw so that the center paperclips are between the two straws, and the others are on the outside ends of the straws. Something like this: Very gently tap the straws until the paperclips have reached equilibrium (i.e., the string no longer moves). Use a protractor to measure the angles θ and β as indicated below: (It may be easier to take a picture of your system and then use the protractor on the picture.) θ β
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Complete the following data tables: Left side of system Right side of system Center of system Number of paperclips 3 3 4 Total mass (kg) 0.00285 kg 0.00285 kg 0.0038 kg
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