Science Fair Projects

Spectrum and Its Relationship to Temperature


The objective: To determine and compare the temperature of two or more light sources by measuring each maximum intensity using the spectrum. the maximum intensity has a corresponding wavelength which will be placed in Wein's Law to find the approximate temperature. I also plan to contact the company of the light sensor to figure out a way to calibrate the results I received from the light sensor, to get the true temperatures of the light sources.


Vernier light sensor, manila folder, yardstick, flashlight, overhead projector, Macintosh computer, Data Logger program, diffraction grating, He-Ne Laser Calibrate the diffraction grating, find the angle of diffraction for each ight source, receive the maximum intensity for each ligh source, calibrate the information, find the maximum wavelength, use Wein's law to get the temperatures, compare and contrast.


The overhead projector had a lower wavelenth, and therefor a higher temperature, but only slightly. I also measured the spectrum of the sun, and the temperature came out way too low, especially compared to past research and tests. This caused me to research the light sensor to make a conclusion for now.


The light sensor has an uneven spectal response, and contact with Hamamatsu, the manufacturer of the Vernier light sensor, is eminant before any further conclusions are made. If my results are calibrated, I can find and compare the true temperatures of the light sources, and new information on how to use the Vernier light sensor will be available.

Measuring and comparing the temperatures of two light sources using their visible spectrums, maximum intensities and corresponding wavelengths, and Wein's Law.

Science Fair Project done By Nichole M. Cubbage


Related Projects : The Focalization of Sound, Specific Heat in Materials, Quantifying the Effect of Tungsten,Color vs. Heat Absorption, Wavelength Controlled Holographic Polarization, Swing, Pendulum, Swing, Creating Sound with Heat, How Do Various Nonwoven Medical Gowns Compare as Barriers Against UV Radiation, Chemiluminescence, Effect of Ammonia Gas on Copper Nanowire Sensors, Brass Instruments and Artificial Lips, How Accurate Is Parallax, Doppler Effect and the Fiber Gyroscope, Radioactive Attenuation and the Inverse Square Law, Effect of Color on the Characteristics of a Heat Barrier Material


<<Back To Topics Page........................................................................................>> Next Topic



Copyright © 2013 through 2015