ELECTROMAGNETIC SPECTRUM

• Covers a wide range of wavelength and photon energies.
• Radio waves, microwaves, infared, ultraviolet, X-rays and gamma rays
• A range of all possible frequencies of electromagnetic radiation

FREQUENCY

• The # of complete cycles per second in alternating current direction.
• Measured in hertz
• Related to wavelength

WAVELENGTH

• Distance between a crest of a wave
• The difference in wavelength is the way we tell differnt kinds of electromagnetic energy apart
• Frequency times wavelength equalls the speed of light

ENERGY

• The ability to do work
• No measure of energy
• Light waves with short wavlengths and high frequencies have more energy
• Gamma rays. X-rays and ultraviolet have higher wavelengths

COLORS OF LIGHT

• All make up the spectrum
• The shorter the wavelength the closer the color is to violets/blue
• The hotter a substance is the closer it is to violets/blue
• Violet/blue/green/yellow/orange/red

The greater the energy, the larger the frequency and the shorter (smaller) the wavelength.

CITATIONS

• http://hubblesite.org/reference_desk/faq/answer.php.id=73&cat=light
• http://sciencelearn.org.nz/Contexts/Light-and-Sight/Science-Ideas-and-Conce...
• http://www.physicsclassroom.com/class/light/Lesson-2/The-Electromagnetic-an...