electromagnetic waves what does energy have to do with waves?
TRANSCRIPT
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Electromagnetic Waves
What does energy have to do with waves?
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What does energy have to do with the wave?
• Electromagnetic wave: A transverse wave that consists of changing electric and magnetic fields.
– http://www.google.com/imgres?imgurl=http://www.astronomynotes.com/light/emanim.gif&imgrefurl=http://www.astronomynotes.com/light/s3.htm&usg=__GVseWMb1yoPuB18VEHQWmqrsHdM=&h=311&w=496&sz=18&hl=en&start=1&zoom=1&um=1&itbs=1&tbnid=4YDWF2lJgNPfDM:&tbnh=82&tbnw=130&prev=/images%3Fq%3Delectromagnetic%2Bwaves%26um%3D1%26hl%3Den%26safe%3Dactive%26rls%3Dcom.microsoft:*%26tbs%3Disch:1&ei=tvyBTeLhC4i5tweO8IzJBA
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Electromagnetic wave:
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Electromagnetic wave fun facts:
• The energy transferred by this type of wave is electromagnetic radiation.
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Electromagnetic wave fun facts:
• The energy transferred by this type of wave is electromagnetic radiation.
• They travel at about 300,000,000 meters per second in a vacuum.
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Electromagnetic wave fun facts:
• The energy transferred by this type of wave is electromagnetic radiation.
• They travel at about 300,000,000 meters per second in a vacuum.
• Speed = wavelength X frequency
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Electromagnetic wave fun facts:
• The energy transferred by this type of wave is electromagnetic radiation.
• They travel at about 300,000,000 meters per second in a vacuum.
• Speed = wavelength X frequency– Wavelength decreases frequency increases.
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Electromagnetic wave fun facts:
• The energy transferred by this type of wave is electromagnetic radiation.
• They travel at about 300,000,000 meters per second in a vacuum.
• Speed = wavelength X frequency– Wavelength decreases frequency increases.– Wavelength increases frequency decreases.
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Electromagnetic wave parts from high energy to low energy:
• Gamma rays:
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Electromagnetic wave parts from high energy to low energy:
• Gamma rays: Used to kill cancer cells (radiation therapy). Also used for precise surgeries (very small cuts).
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Electromagnetic wave parts from high energy to low energy:
• Gamma rays: Used to kill cancer cells (radiation therapy). Also used for precise surgeries (very small cuts).
• X-rays:
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Electromagnetic wave parts from high energy to low energy:
• Gamma rays: Used to kill cancer cells (radiation therapy). Also used for precise surgeries (very small cuts).
• X-rays: Used to take “pictures” of bones.
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Electromagnetic wave parts from high energy to low energy:
• Gamma rays: Used to kill cancer cells (radiation therapy). Also used for precise surgeries (very small cuts).
• X-rays: Used to take “pictures” of bones.
• Ultraviolet:
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Electromagnetic wave parts from high energy to low energy:
• Gamma rays: Used to kill cancer cells (radiation therapy). Also used for precise surgeries (very small cuts).
• X-rays: Used to take “pictures” of bones.
• Ultraviolet: Low exposure helps your body produce Vitamin D. High exposure can cause sunburn or skin cancer.
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Electromagnetic wave parts from high energy to low energy:
• Visible light:
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Electromagnetic wave parts from high energy to low energy:
• Visible light: What human eyes can see. Each wavelength has a different color.
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Electromagnetic wave parts from high energy to low energy:
• Visible light: What human eyes can see. Each wavelength has a different color.
• Infrared rays:
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Electromagnetic wave parts from high energy to low energy:
• Visible light: What human eyes can see. Each wavelength has a different color.
• Infrared rays: Toaster elements, night vision goggles, paintball lasers, remote controls.
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Electromagnetic wave parts from high energy to low energy:
• Visible light: What human eyes can see. Each wavelength has a different color.
• Infrared rays: Toaster elements, night vision goggles, paintball lasers, remote controls.
• Microwave rays:
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Electromagnetic wave parts from high energy to low energy:
• Visible light: What human eyes can see. Each wavelength has a different color.
• Infrared rays: Toaster elements, night vision goggles, paintball lasers, remote controls.
• Microwave rays: Microwave ovens and transmit cellular phone messages. The shortest radio wave.
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Electromagnetic wave parts from high energy to low energy:
• Visible light: What human eyes can see. Each wavelength has a different color.
• Infrared rays: Toaster elements, night vision goggles, paintball lasers, remote controls.
• Microwave rays: Microwave ovens and transmit cellular phone messages. The shortest radio wave.
• Radio / TV waves:
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Electromagnetic wave parts from high energy to low energy:
• Visible light: What human eyes can see. Each wavelength has a different color.
• Infrared rays: Toaster elements, night vision goggles, paintball lasers, remote controls.
• Microwave rays: Microwave ovens and transmit cellular phone messages. The shortest radio wave.
• Radio / TV waves: Carry signals through radio and TV.
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