PPT-STORIES IN THE WAVES Exploring the Electromagnetic Spectrum (with a

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. 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.. 8. th. Grade Physical Science . Question: . What type of wave is a sound wave? . Waves. 3/10/15. Wave. —a repeating movement or disturbance that transfers energy through matter or space. . All waves carry energy without transporting matter from place to place. . Outline. Review of the Quasi-static Approximation. Electric and Magnetic Components of Waves. The Wave Equation (in 1-D). Uniform Plane Waves. Phase Velocity and Intrinsic Impedance. Wave-vector and Wave-frequency. Physics 4. Prepared by Vince Zaccone. For Campus Learning Assistance Services at UCSB. Maxwell’s Equations. Prepared by Vince Zaccone. For Campus Learning Assistance Services at UCSB. Maxwell’s equations summarize the relationships between electric and magnetic fields. A major consequence of these equations is that an accelerating charge will produce electromagnetic radiation.. The stars and other objects in space are very far from Earth. Only a few solar system objects are close enough to be explored with probes. . Astronomers rely on electromagnetic waves to gain information about the universe.. There’s a whole lot of light out there!. The Electromagnetic Spectrum. The electro-magnetic spectrum is made up of visible and . nonvisible. light.. Electromagnetic waves are produced by stars and galaxies.. Sound. Sound waves are compressional waves.. Two regions: compressions and rarefactions. Sound travels faster in liquids and solids than in gases.. Why? The molecules in liquids and solids are closer together.. 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. What is light?. Light is a wave: . Explains much of the everyday behavior of light. Light is a particle: . Explains why heated objects emit only certain frequencies of light at a given temperature. Light as Waves. 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.. . What do X­rays, light, microwaves, radio waves, and infrared have in common? . . EM Radiation. Radiation can be described as the movement of energy through space. . There are many different sources of radiation that vary by intensity. . Waves. What is a wave?. A wave is a disturbance that travels from one location to another location. The traveling disturbance in a wave is carrying energy (NOT matter). Waves that require a medium to travel through are . March 25. June 18. September 26. December 19. http://video.pbs.org/video/2219781967/. Electromagnetic Waves. Believe it or not, you are being . “. showered. ”. all the time, not by rain but by waves. .