PPT-WAVES AND THE ELECTROMAGNETIC SPECTRUM

Waves Wave A repeating movement or disturbance that transfers energy through matter or space All waves carry energy without transporting matter from place to place Molecules pass energy along to neighbor molecules who then pass energy to neighbor. 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. . 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. . 1. The Electromagnetic Spectrum. Wavelength/frequency/energy. MAP TAP 2003-2004. The Electromagnetic Spectrum. 2. Teacher Page. Content: Physical Science—The Electromagnetic Spectrum. Grade Level: High School. 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. 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. 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!. . 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. . Mechanical Waves. A mechanical wave is created when a source of energy causes a vibration to travel through a medium.. A mechanical wave is a disturbance in matter that carries energy from one place to another.. 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. 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. . 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..