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Electromagnetic Spectrum

Electromagnetic Spectrum. Review. Light: Electromagnetic wave. Does not require a medium to travel in. Comes in many frequencies and wavelengths. Electromagnetic Spectrum. Gamma Rays. Highest frequency, shortest wavelength Highest energy Immediate damage if exposed (change DNA).

malik-wright
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Electromagnetic Spectrum

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  1. Electromagnetic Spectrum

  2. Review • Light: Electromagnetic wave. • Does not require a medium to travel in. • Comes in many frequencies and wavelengths.

  3. Electromagnetic Spectrum

  4. Gamma Rays • Highest frequency, shortest wavelength • Highest energy • Immediate damage if exposed (change DNA). • Produced from space explosions. • Uses: sterilizing medical equipment (kills bacteria).

  5. X-Rays Broken Fibula • 2nd Highest Frequency • Background from space exposure. • Also exposed from X-rays for medical purposes. • Uses: X-rays for broken bones. Broken Humerus

  6. UV Rays • 3rd Highest Frequency • Exposure from the Sun • 3 types: UVA, UVB, UVC • Blocked by sunscreen! • Uses: To treat psoriasis. Psoriasis: Skin Disease Sunburn Anyone?

  7. Visible Light • Only electromagnetic waves we see! • ROY G BIV • Uses: To see!

  8. Infrared Rays • Long wavelengths, slow frequency • Produced by heat • Uses: to find marijuana crops in homes.

  9. Microwave • Low energy, long wavelengths, low frequency • Uses: heating up food (causes molecules in food to rotate which creates heat)

  10. Radio Waves • Lowest energy, longest wavelengths, low frequency. • Uses: listening to music on radio.

  11. Vacuums • Vacuum: holds a volume of space that is empty of matter. • In a vacuum, all electromagnetic waves travel at the same speed: 3 x 108 m/s

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