1. Copyright © 2011 by Darrell Causey, Jr.

2. The Light Spectrum (EMR)
Copyright © 2011 by Darrell Causey, Jr.

3. Electromagnetic Spectrum
The range of electromagnetic radiation wavelengths.
(meters)
Copyright © 2011 by Darrell Causey, Jr.

4. λ ν Electromagnetic Spectrum increasing decreasing ultra-violet rays
gamma rays
infrared rays
shortwave
X-rays
radar FM TV AM
(meters) λ
increasing ν
decreasing
Copyright © 2011 by Darrell Causey, Jr.

5. λ ν Electromagnetic Spectrum decreasing increasing ultra-violet rays
gamma rays
infrared rays
shortwave
X-rays
radar FM TV AM
(meters) λ
decreasing ν
increasing
Copyright © 2011 by Darrell Causey, Jr.

6. Electromagnetic Spectrum
ultra-violet rays
gamma rays
infrared rays
shortwave
X-rays
radar FM TV AM
(meters)
Visible Light
Copyright © 2011 by Darrell Causey, Jr.

7. Visible Light Spectrum
ultra-violet rays
gamma rays
infrared rays
shortwave
X-rays
radar FM TV AM
(meters)
Visible Light
(nanometers)
Copyright © 2011 by Darrell Causey, Jr.

8. Refraction The bending of light waves. Prism
Copyright © 2011 by Darrell Causey, Jr.

9. Continuous Spectrum A range of wavelengths with no gaps.
Copyright © 2011 by Darrell Causey, Jr.

10. Line Spectrum A range of wavelengths with gaps or missing wavelengths.
Emission
Absorption
Copyright © 2011 by Darrell Causey, Jr.

11. Reflection The bouncing of light waves off an object.
Copyright © 2011 by Darrell Causey, Jr.

12. Reflection
The reason we SEE things is because of the reflection of light.
Red is reflected.
The other colors are absorbed.
Copyright © 2011 by Darrell Causey, Jr.

13. Spectroscopy The study of light spectra using a spectroscope.
Robert Bunsen
Gustav Kirchhoff
Copyright © 2011 by Darrell Causey, Jr.

14. Spectroscopy Each element emits a unique line spectrum.
Copyright © 2011 by Darrell Causey, Jr.

15. Questions?
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16. Check out … www.mrcausey.com For more information.
Copyright © 2011 by Darrell Causey, Jr.