Term Info Picture. A wave that has both electric and magnetic fields. They travel through empty space (a vacuum).
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1 Waves S8P4. Obtain, evaluate, and communicate information to support the claim that electromagnetic (light) waves behave differently than mechanical (sound) waves. A. Ask questions to develop explanations about the similarities and differences between electromagnetic and mechanical waves. B. Construct an explanation using data to illustrate the relationship between the electromagnetic spectrum and energy. C. C. Design a device to illustrate practical applications of the electromagnetic spectrum. D. Develop and use a model to compare and contrast how light and sound waves are reflected, refracted, absorbed, diffracted or transmitted through various materials. E. E. Analyze and interpret data to predict patterns in the relationship between density of media and wave behavior G. Develop and use models to demonstrate the effects that lenses have on light and their possible technological applications. Term Info Picture Electromagnetic wave A wave that has both electric and magnetic fields. They travel through empty space (a vacuum). Radiation Energy in the form of electromagnetic waves. Radiation can travel through a vacuum (empty space) Electric Field The area surrounding an electrically charged particle. Magnetic Field The area where a magnetic force exists and can act. Light Energy Electromagnetic energy that is visible to human eyes.
2 Electromagnetic Spectrum All of the different types of electromagnetic radiation; the range of wave types. Radio Waves Longest wavelength, Lowest frequency, used for transmitting music through radio stations, cell phone signals, television signals, Microwaves Second-longest wavelength, used to heat food in the microwave oven, cell phone calls and Doppler radar Infrared Waves Longer wavelengths than visible light, used in remote controls, heating food (thermal lamps that heat food in restaurants), thermal imaging Visible Light Spectrum The only part of the electromagnetic spectrum we can see. ROYGBIV (red, orange, yellow, green, blue, indigo, violet) Ultraviolet Waves Shorter wavelengths than visible light, can burn skin (causes sunburn), cause mutations/skin cancer, honeybees can see this light. X-Rays Shorter wavelengths than ultraviolet but not the shortest wavelengths of all EM. Can penetrate skin but not bones and are used to take pictures of our insides. Can be used to study space from X- ray telescopes. Short wavelength, high energy. Gamma Highest energy and shortest wavelength. They are emitted by radioactive atoms, nuclear explosions and they are used to treat cancer.
3 Reflection The bouncing of light or other waves off of a surface. Refraction When a wave bends because it changes from one type of media to another. When white light refracts through a prism, it shows us the colors of the spectrum. Diffraction When light bends as it passes through an opening. Absorption When the energy is taken into the matter; soaked in. Transmission When EM energy passes through matter. Scattering When light scatters (goes off in different directions) Constructive interference The two waves combine so that they make a bigger wave. The crests overlap and add together. Destructive Interference The two waves combine and they end up canceling each other out. The crest and trough overlap.
4 Transparent Allows light to pass through and you can see through it. Translucent Allows some light to pass through but you can t see through it completely; like frosted glass. Opaque Light can not pass through. Learning Targets: 1. I can describe light as an electromagnetic wave. 2. I can explain why light from the sun is important. 3. I can compare and contrast the different waves of the electromagnetic spectrum. 4. I can describe the various uses of different kinds of electromagnetic waves. 5. I can list ways infrared light is important in my life. 6. I can explain the importance of visible light in my daily life and how reflection helps me to see things. 7. I can explain how color is determined. 8. I can characterize ways in which ultraviolet, gamma waves, and X-rays can be helpful or harmful. 9. I can describe how light interacts with matter. 10. I can describe absorption and scattering, and refraction. 11. I can explain the relationship between diffraction and wavelength. 12. I can compare and contrast constructive and destructive interference of light.
5 Waves S8P4. Obtain, evaluate, and communicate information to support the claim that electromagnetic (light) waves behave differently than mechanical (sound) waves. A. Ask questions to develop explanations about the similarities and differences between electromagnetic and mechanical waves. B. Construct an explanation using data to illustrate the relationship between the electromagnetic spectrum and energy. C. C. Design a device to illustrate practical applications of the electromagnetic spectrum. D. Develop and use a model to compare and contrast how light and sound waves are reflected, refracted, absorbed, diffracted or transmitted through various materials. E. E. Analyze and interpret data to predict patterns in the relationship between density of media and wave behavior G. Develop and use models to demonstrate the effects that lenses have on light and their possible technological applications. Term Info Picture Electromagnetic wave Radiation Electric Field Magnetic Field Light Energy
6 Electromagnetic Spectrum Radio Waves Microwaves Infrared Waves Visible Light Spectrum Ultraviolet Waves X-Rays Gamma
7 Reflection Refraction Diffraction Absorption Transmission Scattering Constructive interference Destructive Interference
8 Transparent Translucent Opaque Learning Targets: 1. I can describe light as an electromagnetic wave. 2. I can explain why light from the sun is important. 3. I can compare and contrast the different waves of the electromagnetic spectrum. 4. I can describe the various uses of different kinds of electromagnetic waves. 5. I can list ways infrared light is important in my life. 6. I can explain the importance of visible light in my daily life and how reflection helps me to see things. 7. I can explain how color is determined. 8. I can characterize ways in which ultraviolet, gamma waves, and X-rays can be helpful or harmful. 9. I can describe how light interacts with matter. 10. I can describe absorption and scattering, and refraction. 11. I can explain the relationship between diffraction and wavelength. 12. I can compare and contrast constructive and destructive interference of light.
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