lab04proc

# lab04proc - PHYS 15200 Mechanics IUPUI Physics Department...

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PHYS 15200 Mechanics IUPUI Physics Department Lab04: Friction Page 1 of 3 Lab 04: Friction OBJECTIVE In this experiment you will be verifying the relationship between the force of friction acting on a sliding object and its weight. You will also be measuring the coefficients of static and kinetic friction. This experiment is adapted from Vernier Physics with Computers experiments using Logger Pro . EQUIPMENT computer string Vernier computer interface block of wood with hook Logger Pro electronic balance Vernier Motion Detector set of standard masses Vernier Force Sensor PROCEDURE PART I – STARTING FRICTION 1. Measure the mass of the block and record it in the data table. 2. Connect the Dual-Range Force Sensor to Channel 1 of the interface. Set the range switch on the Force Sensor to 50 N. 3. Open the file “12a Static Kinetic Frict” from the Physics with Computers folder. 4. Tie one end of a string to the hook on the Force Sensor and the other end to the hook on the wooden block. Place a total of 1 kg mass on top of the block, fastened so the masses cannot shift. Practice pulling the block and masses with the Force Sensor using this straight-line motion: Slowly and gently pull horizontally with a small force. Very gradually, taking one full second, increase the force until the block starts to slide, and then keep the block moving at a constant speed for another second. 5. Sketch a graph of force

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lab04proc - PHYS 15200 Mechanics IUPUI Physics Department...

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