Chemistry - Electromagnetic waves

Low frequency, Long wavelength ————> High frequency, Short Wavelength

Radio waves -> Microwaves-> Infra-red-> Visible-> light Ultra-> Violet-> X-rays-> Gamma rays

Gamma rays

(highest wavelength frequency)

• Made by: Stars or some Radioactive Materials

• Uses: Kill cancer cells in the form of radiotherapy, tracing the inside of a person, sterilizing food or equipment

• Causes at high dosage: Cell damage, cell mutations

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X-rays

• Made by: stars, X-ray machines

• Uses: used to see the inside of things or people, airport security, astronomy

• Causes at high dosage: cell damage and cancer

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Ultra Violet

• Made by: Special lamps, sun

• Uses: Sun tanning, detecting forged bank notes, sterilizing the air and equipment before surgery, or in general, sterilization, activate the production of Vitamin D in our bodies

• Causes at high dosage: Damage to the retina, sunburns, and skin cancer

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Visible Light

• Made by: Anything hot enough to glow gives off visible light (like a light bulb)

• Uses: To see in the dark, lasers in printers and DVD players, weapon aiming systems

• Causes at high dosage: damage to the retina of the eye

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Infra-red

• Made by: emitted by hot objects like stars, lamps, or flames

• Uses: For remote controls on TVs, video recorders, heal sports injuries, thermal cameras, Passive Infrared cameras, and weather forecasting

• Causes at high dosage: overheating

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Micro waves

• Made by: stars, magnetrons (an emitter in the phone), microwaves (the appliance)

• Uses: to heat food, to connect phones using wifi, speed cameras, Radar

• Causes at high dosage: can cause cataracts in the eye (basically blindness)

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Radio waves

(lowest wavelength/frequency)

• Made by: stars, transmitters, sparks, and lighting emit Radio waves

• Uses: Different types of Radio

• Causes at high dosage: cancer, leukemia, and other disorders