EM Waves 04 OPENING QUESTION: What is the wavelength of light with a frequency of 1295 megacycles? How much energy does ONE photon of that light carry? What uses has the FCC set aside for that type of light? ═══════════════════════════ LEARNING TARGET: I will investigate how astronomers study each type of light in the EM Spectrum during today's class WORDS O' THE DAY: hertz (Hz): a measure of wave frequency in waves/second electromagnetic waves (light waves from radio - gamma) quantum jump energy levels excited (electron) = ("electrons 'jolted' into a higher energy level") rest state (electron) = ("electrons existing on the lowest energy level") FORMULAE OBJECTUS: h = Plank's Constant = (6.63 x 10-34 m2kg/s) c=λυ: The speed of light (c) = wavelength (λ "lamda") x frequency (υ"nu") E = hυ (The energy in a photon of light is given by Plank's Constant times the frequency of that light CALENDAR: Test returns today Test on light waves on Thursday Begin TFAD work on Friday WORK O' THE DAY: ═══════════════════════════ Let us return to our project to examine the various types of RMIVUXG light: By the end of class today you should have: A list of all the types of light in some sort of order A well-crafted, thoughtful explanation of how that type of light is created by humans here on Earth Several well-crafted, thoughtful descriptions of how we as humans use or experience that type of light here on Earth An example of the specialized equipment ASTRONOMERS use to observe phonomena in that type of light in the Universe. A picture of an astronomical object photographed in that type of light ═══════════════════════════