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ELECTROMAGNETIC SPECTRUM the arrangement of these waves according to their wavelengths and frequencies

Published on Nov 23, 2015

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PRESENTATION OUTLINE

1.

ELECTROMAGNETIC SPECTRUM
the arrangement of these waves according to their wavelengths and frequencies

Photo by NASA's Marshall Space Flight Center
2.

PHOTON
light acts like a stream of particles

Photo by carolinebayet
3.

SPECTROSCOPY
study of the properties of light that depend on wavelength

Photo by ptc24
4.

CONTINUOUS SPECTRUM
produced by an incandescent solid, liquid, or gas under high pressure

Photo by y.caradec
5.

ABSORPTION SPECTRUM
produced when visible light is passed through a relatively cool gas under low pressure

Photo by kevin dooley
6.

EMISSION SPECTRUM
produced by hot gas under low pressure

Photo by Bekathwia
7.

DOPPLER EFFECT
perceived change in wavelength of a wave that is emitted from a osurce that is moving away or toward an object

Photo by Serge Melki
8.

PHOTOSPHERE
the luminous envelope of a star from which its light and heat radiate

Photo by Davide Simonetti
9.

CHROMOSPHERE
irregular layer above the photosphere where the temperature rises from 6000°C to about 20,000°C. At these higher temperatures hydrogen emits light that gives off a reddish color

Photo by Lights In The Dark
10.

CORONA
the rarefied gaseous envelope of the sun and other stars. The sun's corona is normally visible only during a total solar eclipse when it is seen as an irregularly shaped pearly glow surrounding the darkened disk of the moon.

Photo by Sam Ilić
11.

SOLAR WIND
stream of energized, charged particles, primarily electrons and protons, flowing outward from the Sun, through the solar system at speeds as high as 900 km/s and at a temperature of 1 million degrees, it is made of plasma

Photo by NASA Goddard Photo and Video
12.

SUNSPOT
temporary phenomena on the photosphere of the Sun that appear visibly as dark spots compared to surrounding regions. They correspond to concentrations of magnetic field that inhibit convection and result in reduced surface temperature compared to the surrounding photosphere

Photo by NASA Goddard Photo and Video
13.

PROMINENCE
characterizes the height of a mountain or hill's summit by the vertical distance between it and the lowest contour line encircling with no higher summit. It is a measure of the independence of a summit

Photo by NASA Goddard Photo and Video
14.

SOLAR FLARE
a brief eruption of intense high-energy radiation from the sun's surface, associated with sunspots and causing electromagnetic disturbances on the earth, as with radio frequency communications and power line transmissions

Photo by NASA's Marshall Space Flight Center
15.

AURORA
a natural light display in the sky

Photo by Billy Idle
16.

NUCLEAR FUSION
is a nuclear reaction in which two or more atomic nuclei come very close and then collide at a very high speed and join to form a new type of atomic nucleus. During this process, matter is not conserved because some of the matter of the fusing nuclei is converted to photons

Photo by Matt. Create.

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