GPHY 314 Chapter Notes - Chapter 3: Electric Light, Room Temperature, Emission Spectrum
29 Dec 2020
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Internal energy: how fast the atoms and molecules in the object are moving. If water molecules moving slowly in one glass, it has less internal energy than water moving on other glass. If temperature doubles from 200k to 400k, internal energy of object also doubles: 0k is absolute zero -> temperature at which molecules have zero internal energy and cease moving; coldest possible temperature. 0. 3m are used in many familiar applications i. e. cooking - > refer to as microwaves: wavelengths longer than about 0. 3m used in radio applications -> refer to as radiowaves, wavelength determines photon"s physical properties, atmosphere is transparent to visible photons but not to infrared photons. Idealized constructs, but most objects nevertheless behave like one: first figure also shows that the peak of emissions spectrum for. Electromagnetic radiation: law of thermodynamics says that energy is conserved. If some object loses energy, some other energy must gain that same amount.
