Electromagnetic Energy. Energy Energy is transmitted along waves The sun emits energy in the form of? Electromagnetic waves.

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Presentation transcript:

Electromagnetic Energy

Energy Energy is transmitted along waves The sun emits energy in the form of? Electromagnetic waves

Electromagnetic Energy is measured in 2 ways 1. Wavelength 2. Frequency (distance between (number of waves crests of a wave) in a given time)

ESRT Page 14 High Energy Lowest Energy Label on your diagram in your notes!!

Shortest wavelength : Highest Energy: Gamma rays ESRT Page ___ 14 Longest Wavelength Least Energy : Radio Waves

Decreasing order of wavelengths Microwaves, Infrared, Visible, Ultraviolet and Gamma Rays

Which visible color has the longest wavelength? Which visible color has the shortest wavelength? Red Violet/Blue

Spectra Spectroscope: an instrument that divides visible light into colors 1. Continuous 2. Bright Line - used to ID elements Helium

3. Absorption – used to ID stars