text: speed of light? how does the speed of visible light compare with the speed of gamma rays, when both speeds are measured in a vacuum? ~~~~~~*~~~~~ how are the frequency and wavelength of light related? ~~~~~~*~~~~~ as changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit___?___ ~~~~~~*~~~~~  how do the energy differences between the higher energy levels of an atom compare with the energy differences between the lower energy levels of the atom? ~~~~~~*~~~~~ according to the heisenberg uncertainty principle, if the position of a moving particle is known, what other quantity cannot be known? ~~~~~~*~~~~ note* please do not tell me to do my own homework! this is not homework! these are a few questions that i picked out from my chapter, and want to understand a bit better! i have asked people to help, but i am still having trouble understanding a few things. do not acuse me of posting my homework on here! anyone who posts and is not willing to help will be reported my question to you is why you aren't asking your teacher for help.  most would be overjoyed to have a student asking for help in understanding the material better.  besides if i simply gave you the answers what would that teach you.  the best teachers lead you along the path to the lightbulb moment.  for the second look at the equation e=hv v=c/lambda so e=hc/lambda  oh and if you looke up what the heisenberg uncertainty principle is the last question is easy.  here's a clue it's an old (and bad) chem joke that you can use it to get out of a speeding ticket.