2.0 / April 5, 2016
(5.0/5) (2)

Description

Simple Interference Experiment is intendedforstudents going through a physics course, or people interestedinsimple demonstrations in physics. This app allows generating uptofour different sine wave sounds of a definite, unknownfrequency.They can be played one at a time or simultaneously. Whenany two ofthe four available sounds are played at the same timebeats emerge,indicating that all frequencies are relatively closeto eachother.
Outside a physics lab, this app could be used in conjunction withasound frequency generator app installed in a second device inorderto find out the four unknown frequencies. Playing a singlesoundsimultaneously on each device and carefully changing thesound'sfrequency knob in the second device led to beats whenbothfrequencies get close enough. Further adjustments in thedirectionof a decreasing beats frequency will eventually makebeatsdisappear. At this point, the frequency in both devices isthesame.
At the physics lab, in addition to the previous exercise, afasterdetermination of the unknown frequencies can be performedwith theaid of a microphone and the appropriate hardware andsoftwareprovided by Vernier, PASCO or others. In the particularcase ofVernier, the experiment 32 "Sound waves and Beats" from thebookPhysics withVernier,(http://www.vernier.com/experiments/pwv/32/sound_waves_and_beats/)couldbe revisited by using this app as the source of sounds.

App Information Simple Interference Experiment

  • App Name
    Simple Interference Experiment
  • Package Name
    appinventor.ai_jfand72.SimpleInterferenceExperiment
  • Updated
    April 5, 2016
  • File Size
    8.5M
  • Requires Android
    Android 1.6 and up
  • Version
    2.0
  • Developer
    jedfarm
  • Installs
    100 - 500
  • Price
    Free
  • Category
    Education
  • Developer
  • Google Play Link

jedfarm Show More...

Simple Interference Experiment 2.0 APK
jedfarm
Simple Interference Experiment is intendedforstudents going through a physics course, or people interestedinsimple demonstrations in physics. This app allows generating uptofour different sine wave sounds of a definite, unknownfrequency.They can be played one at a time or simultaneously. Whenany two ofthe four available sounds are played at the same timebeats emerge,indicating that all frequencies are relatively closeto eachother.Outside a physics lab, this app could be used in conjunction withasound frequency generator app installed in a second device inorderto find out the four unknown frequencies. Playing a singlesoundsimultaneously on each device and carefully changing thesound'sfrequency knob in the second device led to beats whenbothfrequencies get close enough. Further adjustments in thedirectionof a decreasing beats frequency will eventually makebeatsdisappear. At this point, the frequency in both devices isthesame.At the physics lab, in addition to the previous exercise, afasterdetermination of the unknown frequencies can be performedwith theaid of a microphone and the appropriate hardware andsoftwareprovided by Vernier, PASCO or others. In the particularcase ofVernier, the experiment 32 "Sound waves and Beats" from thebookPhysics withVernier,(http://www.vernier.com/experiments/pwv/32/sound_waves_and_beats/)couldbe revisited by using this app as the source of sounds.