In the light spectrum lab we went into the Chemistry Room and watched Mr. Ludwig demonstrate the change the color behind the light. Light and color have intrigued humans since the start of time. In this experiment, we looked at several aspects of light including:
The visible spectrum of colors (red to violet)
Bright line spectra as emitted by an excited gas or solid
The relationship between color, wavelength, frequency and energy.
What is the Electromagnetic Spectrum? The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation. The "electromagnetic spectrum" of an object has a different meaning, and is instead the characteristic distribution of electromagnetic radiation emitted or absorbed by that particular object.
Continuous Spectrum This spectrum is an emission spectrum that consists of a continuum of wavelengths. It has no separation.
Absorption Spectrum- red The Absorption Spectrum is a spectrum of electromagnetic radiation transmitted through a substance, showing dark lines or bands due to absorption of specific wavelengths. It absorbs the color green.
Blue in front of Light (Absorption Spectrum) When you put the color in front of the light it loses all of the colors.
Rainbow Bar Code (Emission Spectrum) For this spectrum we used a neon bulb.
Mercury When mercury was used I was able to see the colors purple, green, orange and a tint of yellow.
Iodine Vapor In the Iodine Vapor demonstration I seen a purple/white light.
Hydrogen When we used hydrogen I observed purple, green, orange and red.