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Published byMadalyn Phinney
Modified over 5 years ago
Essential Question How do astronomers use the electromagnetic spectrum to study the universe?
Electromagnetic Spectrum The range of radiant (light) energy arranged in order of wavelength and frequency
Wavelength The distance between to crests of a wave
Frequency A count of the number of crests that pass a point in a given amount of time High frequency = high energy
Radio Waves Transmitted by a radio station Astronomers use them to study what stars are made of, their structure and movement
Microwaves Used to cook your food Used to learn about galaxies Used to learn about stars that are behind clouds of dust
Infrared Waves Used by astronomers to map dust between stars There are 2 types: ○ 1 comes from the heat from the sun ○ 1 is used in any device that has a remote control
Visible Light Rainbows show the different wavelengths of light We are able to see colors of stars which gives us a clue about their temperature Helps us understand the Red Shift and Blue Shift
Ultraviolet Rays Newly formed stars give off UV rays Used to learn about the structure and how galaxies change Causes you to get sunburned
X-Ray Wave Black holes give off X-Ray waves Used in hospitals and doctors offices
Gamma Rays Given off from any explosion like a supernova or a black hole Astronomers use them to gain knowledge of how our universe began and how fast it is expanding
Radio Waves: The Sun
X-Ray: Andromeda Galaxy
Infrared: Constellation Orion
The Electromagnetic Radiation
What Wavelength Was That?
Waves and the Electromagnetic Spectrum
The Electromagnetic Spectrum
How do you excite an electron?
Components of the Universe Review REGULAR. List the stages in the life cycle of an Average Star: Nebula – area of dust and gas where stars are formed.
Light. Properties Light is key to understanding the universe by analyzing light; we learn what planets & stars are made of and their temperature. Light.
Electromagnetic Spectrum Unit D: Earth’s Place in the Universe.
4-1 Radiant Energy. Waves Light travels in Waves similar to ocean waves Light waves are electromagnetic and consist of an electric and magnetic fields.
Electromagnetic Waves. What are they? Electromagnetic waves are energy which radiate from a source in a wave pattern – troughs and crests Waves can be.
White Light & Electromagnetic Spectrum. What is Radiation? Energy that is transmitted from one place to another by electromagnetic waves Heat, UV rays.
ALL ABOUT. Light is a form of energy. –Also known as electromagnetic (EM) radiation. –Carried in small packets called photons. As light wavelength increases,
The Electromagnetic Spectrum: Pages 53 and 54 QUESTION: What is a spectrum? OBJECTIVE: Students will be able to name and give a common use of waves that.
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X-Ray UltravioletVisibleInfraredRadio The Electromagnetic Spectrum and the Universe.
The Electromagnetic Spectrum By: [Your Name Here] Period [your period]
WHAT ASTRONOMERS LEARN ABOUT THE ELECTROMAGNETIC SPECTRUM.
The Electromagnetic Spectrum The electromagnetic spectrum includes a wide range of light waves, some that we can't see. Some of the non-visible types of.
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