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Unformatted text preview: Laboratory 5: Energy and Moment Physics 127/141  Wint Replace with both your names, current date and section number Please name your file uniqname.xlsx, and save one copy for each student Experiment 1: Inelastic Collisions Graph for first inelastic collision (no additional mass) Graph for second inelastic collision (additional mass add Experiment 2: Elastic Collisions Graph for first inelastic collision (no additional mass) Graph for first inelastic collision (no additional mass) Graph for second inelastic collision (additional mass adde Experiment 3: Model Fitting and Statistics
KINETIC ENERGY Ratio = KEafter/KEbefore Your data Other groups' data Mean Number of trials Standard deviation Error of the mean 95% C.I. (lower bound) 95% C.I. (upper bound) TOTAL MOMENTUM Ratio = Pafter/Pbefore Your data Other groups' data Mean Number of trials Standard deviation Error of the mean 95% C.I. (lower bound) 95% C.I. (upper bound) Inelastic (no mass) Inelastic (no mass) (Problem 5.6) From your experimental results, does it appear that linear mome inelastic collisions? Why or why not? (Problem 5.7) From your experimental results, does it appear that kinetic ener inelastic collisions? Why or why not? (Problem 5.8) Would the following sources of error affect your results for this energy is conserved)? Write a onesentence explanation of why/why not for ea (a) The gliders experience air resistance. (b) The track is not level. (c) The cart that is supposed to be still at the beginning of each trial is actually moving a bit. Energy and Momentum Conservation I ysics 127/141  Winter 2010 Mass of glider 1 (kg) Mass of glider 2 (kg) Total momentum before (kgm/s Total momentum after (kgm/s) Ratio Kinetic energy before (J) Kinetic energy after (J) Ratio collision (no additional mass) Mass of glider 1 (kg) Mass of glider 2 (kg) Total momentum before (kgm/s Total momentum after (kgm/s) Ratio Kinetic energy before (J) Kinetic energy after (J) Ratio collision (additional mass added) Mass of glider 1 (kg) Mass of glider 2 (kg) Total momentum before (kgm/s Total momentum after (kgm/s) Ratio Kinetic energy before (J) Kinetic energy after (J) Ratio collision (no additional mass) collision (no additional mass) Mass of glider 1 (kg) Mass of glider 2 (kg) Total momentum before (kgm/s Total momentum after (kgm/s) Ratio Kinetic energy before (J) Kinetic energy after (J) Ratio collision (additional mass added) Inelastic (w/mass) Elastic (no mass) Elastic (w/mass) Inelastic (w/mass) Elastic (no mass) Elastic (w/mass) es it appear that linear momentum is conserved in elastic collisions? How about in es it appear that kinetic energy is conserved in elastic collisions? How about in or affect your results for this experiment (i.e. whether linear momentum/kinetic anation of why/why not for each. Effect/no effect? Explanation ass of glider 1 (kg) ass of glider 2 (kg) tal momentum before (kgm/s) tal momentum after (kgm/s) netic energy before (J) netic energy after (J) ass of glider 1 (kg) ass of glider 2 (kg) tal momentum before (kgm/s) tal momentum after (kgm/s) netic energy before (J) netic energy after (J) ass of glider 1 (kg) ass of glider 2 (kg) tal momentum before (kgm/s) tal momentum after (kgm/s) netic energy before (J) netic energy after (J) ass of glider 1 (kg) ass of glider 2 (kg) tal momentum before (kgm/s) tal momentum after (kgm/s) netic energy before (J) netic energy after (J) ...
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 Spring '07
 Tony
 Current, Energy

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