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See the Light: A Study of Measuring Electromagnetic Wavelengths

CSEF · 2015 Physics & Astronomy

Zachary B. Follett · Cain (E.V.) Middle School, Auburn, Placer County

Overview

Objectives/Goals The purpose of my project was to determine if common household supplies could be used in building an effective way to measure wavelengths of a spectrum. Methods/Materials For the first experiment a CD was attached to a wooden platform. The glasses were then filled with water, and 4 drops of food dye were dropped into each glass. The glasses were then aligned with an LED light and the CD, which showed a spectrum of colors and pictures were taken. For the second experiment a linear diffraction grating was used to separate the light shown through colored water contained in glass cuvettes. A software application analyzed all pictures. Results The results of my experiment supported my hypotheses that a spectrum could be accurately captured and measured using common household supplies. Conclusions/Discussion The information gained form this project can be used to show that science experiments can be done with common household objects and without spending a lot of money.

Summary statement

To demonstrate that household materials can be used to perform effective scientific experiments.

Help received

My dad helped buy supplies and set up software application.

Competition history

  • CSEF 2015 Physics & Astronomy · Entry J1709

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