P12 Electromagnetic waves Glossary

carrier waves
waves used to carry any type of signal
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charge-coupled device (CCD)
an electronic device that creates an electronic signal from an optical image formed on the CCD's array of pixels
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contrast medium
an X-ray absorbing substance used to fill a body organ so the organ can be seen on a radiograph
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electromagnetic spectrum
the continuous spectrum of electromagnetic waves
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microwaves
electromagnetic waves between infrared radiation and radio waves in the electromagnetic spectrum
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optical fibre
thin glass fibre used to transmit light signals
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radiation dose
amount of ionising radiation a person receives
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radio waves
electromagnetic waves of wavelengths greater than 0.10m
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ultraviolet radiation (UV)
electromagnetic waves between visible light and X-rays in the electromagnetic spectrum
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wave speed
the distance travelled per second by a wave crest or trough
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white light
light that includes all the colours of the spectrum
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X-rays
electromagnetic waves smaller in wavelength than ultraviolet radiation and produced by X-ray tubes
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Other cards in this set

Card 2

Front

an electronic device that creates an electronic signal from an optical image formed on the CCD's array of pixels

Back

charge-coupled device (CCD)

Card 3

Front

an X-ray absorbing substance used to fill a body organ so the organ can be seen on a radiograph

Back

Preview of the back of card 3

Card 4

Front

the continuous spectrum of electromagnetic waves

Back

Preview of the back of card 4

Card 5

Front

electromagnetic waves between infrared radiation and radio waves in the electromagnetic spectrum

Back

Preview of the back of card 5
View more cards

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