Star Light Flare
Science Questions i need help!!! first correct set of answers 10 PTS!!?
. If the frequency of an electromagnetic wave is too high or too low (4 points) (Points : 4)
It cannot be seen
It is no longer a wave
It is no longer an electromagnetic wave
It becomes a sound wave
23. What is a star's emission spectrum? (4 points) (Points : 4)
It is the same as the HR diagram and gives the same information.
It is the fingerprint of all of the colors of light emitted by a star.
It is a graph of all the pollution given off by a star.
It is a graph of the star's solar flares.
. Which of the following statements is true? (4 points) (Points : 4)
Solar flares are solar eruptions that loop into space.
Solar prominences are solar eruptions that loop into space.
Solar prominences are solar eruptions that do not loop into space.
Solar storms are solar eruptions that loop into space.
becomes sound wave
The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation The "electromagnetic spectrum" of an object is the characteristic distribution of electromagnetic radiation emitted or absorbed by that particular object.
The electromagnetic spectrum extends from low frequencies used for modern radio to gamma radiation at the short-wavelength end, covering wavelengths from thousands of kilometers down to a fraction of the size of an atom. The long wavelength limit is the size of the universe itself, while it is thought that the short wavelength limit is in the vicinity of the Planck length, although in principle the spectrum is infinite and continuous.
Spectroscopy can detect a much wider region of the EM spectrum than the visible range of 400 nm to 700 nm
23
Pass sunlight through a triangular prism or bounce it off the finely grooved surface of a compact audio disk and see it break merrily into a band of pure sparkling color, its "spectrum," familiar in the colors of a rainbow, in light glittering from newly fallen snow, in the rings and haloes around a partly- clouded Sun and Moon, in the flash of a cut diamond, and in so many other facets of nature. The classic colors red, orange, yellow, green, blue, and violet connect in a seemingly infinite number of shades, one blending smoothly into the next. Together they constitute the "visual spectrum" (or "optical spectrum") because it is the part of the full spectrum that is seen with the human eye.
A flare is defined as a sudden, rapid, and intense variation in brightness. A solar flare occurs when magnetic energy that has built up in the solar atmosphere is suddenly released. Radiation is emitted across virtually the entire electromagnetic spectrum, from radio waves at the long wavelength end, through optical emission to x-rays and gamma rays at the short wavelength end. The amount of energy released is the equivalent of millions of 100-megaton hydrogen bombs exploding at the same time! The first solar flare recorded in astronomical literature was on September 1, 1859. Two scientists, Richard C. Carrington and Richard Hodgson, were independently observing sunspots at the time, when they viewed a large flare in white light.
Gor this question go to:
http://hesperia.gsfc.nasa.gov/sftheory/flare.htm
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