if molecules are moving very fast, what phase of matter are they most likely in?; why do the air molecules inside a bicycle tire speed up as the temperature gets warmer?; in which state of matter has the least kinetic energy?; a sample of a substance has a high density, yet a low particle motion. this sample must be a; which state of matter has the greatest distance between the individual particles?; heat always travels from to; an example of kinetic energy being converted into heat energy is; in which state of matter are the particles closest together?