IQ Leaning Network

Facebook
Pintrest
Twitter
YouTube
Subscribe to IQ Learning Network:
PBS Learning Media
PBS Kids

Light Diffraction

THIS VIDEO REQUIRES THAT YOU HAVE FLASH INSTALLED ON YOUR BROWSER. YOU MAY DOWNLOAD AND INSTALL IT HERE.
Video Overview
This demonstration exhibits light?s wave-like characteristics. This is half of light?s duality; the other half being light?s particle-like characteristics. Using diffraction gratings we can compare the visible parts of atomic spectra for different elements. A diffraction grating consists of a large number of equally spaced parallel slits. These slits bend light differently according to wavelength. Incandescent lights work by heating a solid piece of tungsten wire. This heating of a solid produces a variety of wavelengths, giving an impressive spread of colors when viewed with a diffraction grating. Since the other lamps are single gaseous elements, they emit only a few wavelengths of light, their individual atomic spectra.
Alabama Course of Study

Science (2005)
4th Grade

3.) Recognize how light interacts with transparent, translucent, and opaque materials.
     •  Predicting the reflection or absorption of light by various objects

5th Grade
5.) Contrast ways in which light rays are bent by concave and convex lenses.
      •  Describing how a prism forms a visible spectrum
      •  Explaining why different objects have different colors
      •  Describing how mirrors reflect light
             Example: discussing differences in the reflection of light by convex and concave mirrors
      •  Describing the relationship between the structure of the eye and sight
      •  Identifying types of corrective lenses used to correct different sight problems
             Examples: convex-farsightedness, concave-nearsightedness
      •  Identifying the contribution of van Leeuwenhoek to the development of the microscope

8th Grade
12.) Classify waves as mechanical or electromagnetic.
            Examples:
                  - electromagnetic-ultraviolet light waves, visible light waves
        •  Describing how earthquake waves, sound waves, water waves, and electromagnetic waves
           can be destructive or beneficial due to the transfer of energy
        •  Describing longitudinal and transverse waves
        •  Describing how waves travel through different media
        •  Relating wavelength, frequency, and amplitude to energy
        •  Describing the electromagnetic spectrum in terms of frequencies
             Example: electromagnetic spectrum in increasing frequencies-microwaves, infrared light, visible light, 
             ultraviolet light, X rays

Downloads

Study Guide

More Episodes OF Einstein Demonstrations

IQ Leaning Network

Facebook
Pintrest
Twitter
YouTube
Subscribe to IQ Learning Network:
PBS Learning Media
PBS Kids

Education Sponsors

IQ Learning Network
  • Alpha Foundation
  • Daniel Foundation of Alabama
  • Hugh Kaul Foundation
  • Monte L. Moorer Foundation
  • Sybil H. Smith Charitable Trust
Learning Adventures
  • Alabama Bicentennial Commission
  • Alabama Humanities Foundation
    A state program of the National Endowment for the Humanities
  • Alabama State Council on the Arts
  • American Graduate
    A program of the Corporation for Public Broadcasting
  • The Daniel Foundation of Alabama
  • Jefferson County Cy Pres Fund
  • Malone Family Foundation
  • Robert Meyer Foundation
  • Sybil Smith Foundation
  • The Stephens Foundation
  • Wells Fargo Foundation
e-Learning for Educators/ APT Learn Online
  • Community Foundation of Greater Birmingham
  • U.S. Department of Education
STEM Education Initiative
  • Ann & Alfred F. Delchamps, Jr. Charitable Fund
  • BBVA Compass Bank
  • Beverly and Gary Cooper Charitable Fund
  • Community Foundation of South Alabama
  • Corporation for Public Broadcasting
General Educational Support
  • Alabama Department of Human Resources
  • Blue Cross/Blue Shield of Alabama
  • Books-A-Million
  • Honda Manufacturing of Alabama
  • Wells Fargo
PBS Kids Programs
  • Alabama Power
  • Books-A-Million
  • Children's of Alabama
  • US Space & Rocket Center
American Graduate
  • Corporation for Public Broadcasting
Southern Education Desk
  • Corporation for Public Broadcasting