PPT-Electromagnetic Waves! The EM and Visible Spectra

Electromagnetic Waves Electromagnetic EM waves are waves caused by oscillations occurring simultaneously in electric and magnetic fields A 2D transverse wave They DO NOT require any medium in order to propagate. Introduction To The Textbook. “Atomic Astrophysics and . Spectroscopy” (AAS). Anil . Pradhan. and Sultana . Nahar. Cambridge University Press 2011. Details at: . www.astronomy.ohio-state.edu/~pradhan/Book/book.html. Section . 1- What . are electromagnetic waves?. WHAT DO CORDLESS PHONES AND MICROWAVE OVENS HAVE IN COMMON?. Each emits electromagnetic waves.. Remember…. A . wave. . is a repeating disturbance or movement that transfers energy through matter or space.. . WAVES. MAXWELL’S EQUATIONS. ELECTROMAGNETIC WAVES. INTRODUCTION. JAMES CLARK MAXWELL OF SCOTLAND GAVE A SET OF FORMULAE FOR ELECTRIC CHARGE, CURRENT AND THEIR ELECTRIC FIELD AS WELL AS MAGNETIC FIELD.. Mrs. Molloy. 6. th. Grade Science. Electromagnetic Waves…. Do not need matter to transfer energy.. Made by vibrating electric charges.. Travel by transferring energy between electric and magnetic fields.. Electromagnetic Radiation. Electromagnetic waves perpendicular waves combing the electric and magnetic fields. . Electromagnetic waves are produced when an electric charge vibrates or accelerates and can travel through empty space or through matter. . 6. th. grade . Mrs. Messina. DO NOW. : 2/23/16. T. hink about the term “. electromagnetic. ”. . List as many things . that you can think of that are considered electromagnetic.. Electromagnetic energy. Not all waves are the same. (Please draw the picture and write your answers in complete sentences.). 1. How are the waves different from each other?. 2. . Which wave has the highest frequency? Which wave has the lowest? How do you know?. College Physics Chapter 24 ELECTROMAGNETIC WAVES PowerPoint Image Slideshow Figure 24.1 Human eyes detect these orange “sea goldie ” fish swimming over a coral reef in the blue waters of the Gulf of Light. Light. Properties and Interactions. What is Light?. Light. is a form of energy emitted by the Sun..  . What is Light?. Light. is a type of energy that travels as an electromagnetic wave.. Gravitational Wave Bonus). The next slides show images of the SAME region of sky, but using different types of light. The view in VISIBLE LIGHT. INFRARED. RADIO WAVES. RADIO WAVES. GAMMA RAYS. Different types of light give us different information!. Electromagnetic Waves. Electromagnetic (EM) waves . are waves caused by oscillations occurring simultaneously in electric and magnetic fields. A . 2D. transverse. wave. They DO NOT require any medium in order to propagate. “Atomic Astrophysics and . Spectroscopy” (AAS). Anil . Pradhan. and Sultana . Nahar. Cambridge University Press 2011. Details at: . www.astronomy.ohio-state.edu/~pradhan/Book/book.html. . Absorption and Emission by Hydrogen Atom:. Radiation and Law of Reflection. Chapter 18:2. And Chapter 19.1 page 570. Electromagnetic Spectrum. Today . we know that there is a full range of electromagnetic radiation known as the . electromagnetic spectrum. The Scottish physicist James Clerk Maxwell (1831–1879) was the first person to truly understand the fundamental nature of light. . He proved in 1865 that an electromagnetic disturbance should propagate in free space with a speed equal to that of light..