ElectroSpectrum Flashcards

1
Q

Electromagnetic wave type

A

Transverse wave

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2
Q

Radio waves uses

A
  • television/telephone TRANSMISSION

* Radio broadcasting

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3
Q

Microwaves uses

A
  • Satellite television

* Microwave oven

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4
Q

Infra-red uses

A
  • Remote control

* Motion sensors

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5
Q

Visible light uses

A
  • Optical fibres

* Telecommunications

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6
Q

Ultra violet uses

A
  • Sunbeds

* Causes sun burns

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7
Q

X-ray uses

A
  • X-ray images

* Detects internal structural problems

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8
Q

Gamma ray uses

A

• Kills cancer cells

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9
Q

Positive effects of electromagnetic waves

A

• Infrared wave to keep use warm

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10
Q

Negative effects of electromagnetic waves

A
  • Sunburns
  • Skin cancer
  • Damage to living cells
  • Premature aging
  • Shortening of lifespan
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11
Q

Can electromagnetic wave travel in vacuum

A

yes yes yes yes yes. YES!!!

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