temperature Flashcards
what must an object do to remain at a constant temperature
radiate the same amount of power it absorbs
what happens to wavelengths as the temperature of an object increases
the intensity of every emitted wavelength increases
what is the difference in intensity between shorter wavelengths and long wavelengths
intensity increases more rapidly in long wavelengths
why are blue stars hotter than yellow stars
the shorter the wavelength, the hotter the object
what happens during the day (radiation and the earth)
radiation transferred to the earth from the sun
some is reflected and and some is absorbed by atmospheres, clouds, surface
INCREASES LOCAL TEMP
what happens during the night
radiation is emitted by the atmosphere, clouds and earths surface
DECREASE IN LOCAL TEMP
why does the temp of the earth remain constant
earth and atmosphere radiate the same amount it power it receives
why is the overall temp rising
greenhouse gases absorb energy so the earth and atmosphere radiates less energy than it receives
