electromagnetic waves what does energy have to do with waves?

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Electromagnetic Waves What does energy have to do with waves?

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Page 1: Electromagnetic Waves What does energy have to do with waves?

Electromagnetic Waves

What does energy have to do with waves?

Page 2: Electromagnetic Waves What does energy have to do with waves?

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

Page 3: Electromagnetic Waves What does energy have to do with waves?

Electromagnetic wave:

Page 4: Electromagnetic Waves What does energy have to do with waves?

Electromagnetic wave fun facts:

• The energy transferred by this type of wave is electromagnetic radiation.

Page 5: Electromagnetic Waves What does energy have to do with waves?

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.

Page 6: Electromagnetic Waves What does energy have to do with waves?

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

Page 7: Electromagnetic Waves What does energy have to do with waves?

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.

Page 8: Electromagnetic Waves What does energy have to do with waves?

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.

Page 9: Electromagnetic Waves What does energy have to do with waves?

Electromagnetic wave parts from high energy to low energy:

• Gamma rays:

Page 10: Electromagnetic Waves What does energy have to do with waves?

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).

Page 11: Electromagnetic Waves What does energy have to do with waves?

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:

Page 12: Electromagnetic Waves What does energy have to do with waves?

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.

Page 13: Electromagnetic Waves What does energy have to do with waves?

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:

Page 14: Electromagnetic Waves What does energy have to do with waves?

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.

Page 15: Electromagnetic Waves What does energy have to do with waves?

Electromagnetic wave parts from high energy to low energy:

• Visible light:

Page 16: Electromagnetic Waves What does energy have to do with waves?

Electromagnetic wave parts from high energy to low energy:

• Visible light: What human eyes can see. Each wavelength has a different color.

Page 17: Electromagnetic Waves What does energy have to do with waves?

Electromagnetic wave parts from high energy to low energy:

• Visible light: What human eyes can see. Each wavelength has a different color.

• Infrared rays:

Page 18: Electromagnetic Waves What does energy have to do with waves?

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.

Page 19: Electromagnetic Waves What does energy have to do with waves?

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:

Page 20: Electromagnetic Waves What does energy have to do with waves?

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.

Page 21: Electromagnetic Waves What does energy have to do with waves?

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:

Page 22: Electromagnetic Waves What does energy have to do with waves?

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.

Page 23: Electromagnetic Waves What does energy have to do with waves?