ElectroSpectrum Flashcards by TobxtR LahSial

Q

Electromagnetic wave type

A

Transverse wave

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Q

Radio waves uses

A

television/telephone TRANSMISSION

* Radio broadcasting

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Q

Microwaves uses

A

Satellite television

* Microwave oven

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Q

Infra-red uses

A

Remote control

* Motion sensors

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Q

Visible light uses

A

Optical fibres

* Telecommunications

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Q

Ultra violet uses

A

Sunbeds

* Causes sun burns

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Q

X-ray uses

A

X-ray images

* Detects internal structural problems

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Q

Gamma ray uses

A

• Kills cancer cells

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Q

Positive effects of electromagnetic waves

A

• Infrared wave to keep use warm

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Q

Negative effects of electromagnetic waves

A

Sunburns
Skin cancer
Damage to living cells
Premature aging
Shortening of lifespan

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Q

Can electromagnetic wave travel in vacuum

A

yes yes yes yes yes. YES!!!

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