Electromagnetic Spectrum Flashcards

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1
Q

Describe electromagnetic waves

A

Transverse waves
= transfer energy from source of waves to an absorber

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2
Q

Give the order of colours on the spectrum
Low frequency= first

A

Red, orange, yellow, green, blue, indigo, violet

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3
Q

Describe the electromagnetic spectrum

A

Radio, microwaves, infrared, visible light, ultraviolet, X rays, gamma rays

First= low frequency and long wavelength

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4
Q

Features of electromagnetic waves

A

Don’t need a medium to travel in
= can travel at same speed in a vacuum

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5
Q

Facts about refraction

A
  • waves can change direction when they change speed, moving from one medium to another
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