1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

High-School Physics Practical Investigation- Need Help!

  1. May 17, 2014 #1
    Hey Guys,
    I'm a high-school student from Australia, and I am an avid lover of physics! I'm top of my class, however I am not a physicist so please explain things at a level I would understand. I am also new to the forum so i apologize in advance for any mistakes.

    As part of my VCE studies, I must conduct a practical investigation and write a report on an area of photonics and light transmission of a signal with 2 variables. The challenge I am having is coming up with something to test. My ideas thus far are:

    1. Use a laser to transmit an audio signal across a certain distance to a receiver, and recording the effect that different optical densities in the path of the light would do eg. place plexiglass/lexan/water of varying thickness in front of the laser to see what changes are made to the signal. I would be able to control background light, distance etc.
    Or...
    2. Use a laser to transmit an audio signal across a certain distance to a receiver, and placing colour filters in the path of the laser and record the effect.
    Or...
    3. Use a laser to transmit an audio signal across a certain distance to a receiver and place a lens (concave, convex) and record the effect.

    Please let me know if my ideas are worth investigating, and any improvements/ new ideas are welcome!

    Cheers,
    Booker
     
  2. jcsd
  3. May 18, 2014 #2

    UltrafastPED

    User Avatar
    Science Advisor
    Gold Member

    How about running the signal through everyday problems:

    simulated fog, rain, smoke, and parked cars ... these all can interfere with the signals.

    You can then determine how much "interference generation" can be tolerated by the system.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: High-School Physics Practical Investigation- Need Help!
Loading...