Week 4 Content Questions

Light is one form of electromagnetic radiation . What be electromagnetic waves , and what other types exist besides light ? take apart their wavelengthsElectromagnetic waves be disturbances caused by the oscillation of charged particles . It consists of two ramify , an electric subject sketch and a magnetic handle hoer perpendicular to each other . The wave is self-sustaining , and propagates at a direction perpendicular to both the electric field and magnetic fieldThere is a whole spectrum of electromagnetic waves . The ones with the longest wavelengths (range : 1 cm-1km ) are the radio waves . After the radio waves , microwaves name the obstruct longest wavelength (range 1mm-10cm . Then , we fox the infrared waves (range : 1 ?m-1mm , followed by light (range : 400nm-700nm , ultraviolet rays (range : 1nm-100nm x-rays (range : 0 .1nm-10nm , and gamma rays , which work the shortest wavelengths amongst the various electromagnetic radiations (range 0 .01nm-0 .1nmb . How you condition the temperature , composition , and exercise of an throw from its light spectrumDifferent elements emit and absorb light waves differently . therefrom , when viewed through a spectroscope , different elements lead construct different spectral patterns . The prey s composition is obtained from noning which spectral lines are present or absent . We can also fructify the density of the butt depending on the amount of lines present in the spectrum . The more lines and the more continuous the spectrum , the denser is the materialOn the other hand , the temperature of the object will affect the shapes spectral lines emitted by the object . If objects have high temperatures their spectral lines will be broader , that is , it is spread everyplace more frequencies than if it had lower temperature . To determine t emperatureFinally , the Doppler Shift tells ! us the exertion of the object , whether it is lamentable outside or toward us , and with what merely .

When the conserved object is moving toward us , the spectral lines we respect occur at shorter wavelengths when we compare it to those measured in the erudition lab . This is called blueshifted On the other hand , if the object is moving away from us we observe the lines to occur at long-acting wavelengths . In this cocktail dress we say that the lines are redshifted The amount of shift will determine the speed of motionIn what way do astronomers understand that the insolatelight s nada comes from thermonuclear fusion reactions ? How do we go to bed it does not come from chemic burningEven though both nuclear fusions and chemic reactions result in the chemise of zero , nuclear fusions release much more energy than chemical reactions . This is ascribable to the temper of each reaction . Given that the energy that the sun produces is extremely high , it is impossible that chemical reactions are fuelling it , for if that were the case , past the sun will not be producing plenteous energy to sustain life on Earth . If it were chemical reactions powering it , it would be producing roughly one-millionth of the energy it is producing nowExplain how the Sun produces energy by nuclear fusionBecause of the amount of matter...If you want to get a respectable essay, order it on our website: BestEssayCheap.com

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