Jump to content

physicssuperstar

Members
  • Content Count

    2
  • Joined

  • Last visited

    Never

Community Reputation

0 Neutral

About physicssuperstar

  • Rank
    Junior Member
  1. Today we have marked a time in history! Our mission started with finding gravity... Our lab consisted of dropping a ball from the ceiling and timing how long it took. First we started by measuring the height from floor to ceiling which we found to be 1.73 meters. Then we timed it three times with an average of .46 seconds. We knew to use the equation d=vit+1/2at^2. When subbing in the values, we found gravity to be 8.18 m/s^2 which is pretty close to the actual 9.18m/s^2 actual gravity on earth. Even after this being super close, Fullerton had us do yet another test. This test consisted of using the human vertical test. First we timed how long each person could be in the air and averaged all the group members times which ended up being .617 seconds. Then we did how high a person could jump and it was .3375 meters. When using the equation d=vit+1/2at^2, we found gravity to be 1.77 m/s^2. This value we could just pretty much throw in the trash because we found it to 98% error. So with our gravity experiment, 8.18 m/s^2 is pretty well.
  2. This had such a high percent error mainly because the methods of measuring time and distance aren't good methods to use. The modern experimental setup and methodology would consist of being connected with a form of wireless electronics hooked up to the body and connected to a computer. When jumping the electronics will signal that movement is taking place and will show time in the air as well as the distance jumped. This will be a more better form because it will not rely on us students to be responsible and precise with our measurements.

Terms of Use

The pages of APlusPhysics.com, Physics in Action podcasts, and other online media at this site are made available as a service to physics students, instructors, and others. Their use is encouraged and is free of charge. Teachers who wish to use materials either in a classroom demonstration format or as part of an interactive activity/lesson are granted permission (and encouraged) to do so. Linking to information on this site is allowed and encouraged, but content from APlusPhysics may not be made available elsewhere on the Internet without the author's written permission.

Copyright Notice

APlusPhysics.com, Silly Beagle Productions and Physics In Action materials are copyright protected and the author restricts their use to online usage through a live internet connection. Any downloading of files to other storage devices (hard drives, web servers, school servers, CDs, etc.) with the exception of Physics In Action podcast episodes is prohibited. The use of images, text and animations in other projects (including non-profit endeavors) is also prohibited. Requests for permission to use such material on other projects may be submitted in writing to info@aplusphysics.com. Licensing of the content of APlusPhysics.com for other uses may be considered in the future.

×
×
  • Create New...