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Physics GCSE > Electromagnetic Spectrum 1 > Flashcards

Electromagnetic Spectrum 1 Flashcards

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1
Q

What are electromagnetic waves

A

Electric and magnetic disturbances

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2
Q

Do all electromagnetic waves travel at the same speed

A

Yes

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3
Q

What is the electromagnetic spectrum in order

A

Radio waves
Microwaves
Infrared
Visible
Uv
X ray
Gamma ray

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4
Q

What does the higher the frequency mean to an electromagnetic spectrum

A

The more energy it transfers

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5
Q

Which part of the electromagnetic spectrum has the longest wavelength

A

The top

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6
Q

Which part of the electromagnetic spectrum transfers the most energy

A

The bottom

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7
Q

What is a mnemonic to help you remember the order of the spectrum

A

Rude medics inject verrucas using xenon gas

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8
Q

What is white light

A

Light that contains all the colours of the visible spectrum

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9
Q

What is infrared radiation emitted by

A

Everything

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10
Q

What uses infrared radiation

A

TVs and DVDs

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11
Q

What are microwaves used for

A

Send signals to and from satellites for tv programmes

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12
Q

What can too much of radio waves micro waves and infrared radiation cause

A

Internal heating and burning

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13
Q

What are carrier waves

A

Waves that are used to carry any type of signal

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14
Q

Which type of wave are carried by optical fibres

A

Visible and infrared

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15
Q

What are uv waves used for

A

Security marking and in sunbeds

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16
Q

What can uv waves cause

A

Skin cancer and may be harmful to eyes

17
Q

What are x rays used for

A

Images of bones
Killing tumours

18
Q

What are gamma rays used for

A

Kill harmful bacteria and sterilise surgical instruments

19
Q

What is ionisation

A

When gamma or x rays pass through a substance They knock electrons out of the substance leaving the atoms with a positive charge

20
Q

What absorb gamma and x rays

A

Lead

21
Q

what is a film badge used for

A

changes colour if exposed to x ray so can be monitored

22
Q

what can radio waves do

A

bend around large objects

Physics GCSE (27 decks)

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