Electromagnetic Waves Flashcards

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0
Q

Electromagnetic spectrum

A

The complete range of electromagnetic waves placed in order of increasing frequency. Is made up of radio waves, microwaves, infrared rays, and gamma rays

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1
Q

Electromagnetic wave

A

A transverse wave that is made up of vibrating electric and magnetic fields that move through space or some medium at the speed of light

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2
Q

Radio waves

A

Electromagnetic waves with the longest wavelengths and the lowest frequencies

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3
Q

Microwaves

A

Have shorter wavelengths and higher frequencies than radio waves do

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4
Q

Radar

A
  • stands for radio detection and ranging

- a system that uses reflected microwaves to detect objects and measure their distance and speed

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5
Q

Infrared rays

A

Electromagnetic waves with wavelengths shorter than those of microwaves. Carry more energy than microwaves, and are often called heat rays

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6
Q

Thermogram

A

An image that shows regions of different temperatures in different colors

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7
Q

Visible light

A

Electromagnetic waves that you can see

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8
Q

Ultraviolet rays

A

Electromagnetic waves with wavelengths just shorter than those of visible light. Carry more energy than visible light and can damage or kill living cells

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9
Q

X-rays

A

Electromagnetic waves with wavelengths just shorter than those of ultraviolet rays. Carry more energy than ultraviolet rays and can penetrate most matter

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10
Q

Gamma rays

A

Electromagnetic waves with the shortest wavelengths and highest frequencies. Have the greatest amount of energy and are the most penetrating

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