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GCSE Physics > Electromagnetic Spectrum > Flashcards

Electromagnetic Spectrum Flashcards

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1
Q

What are some examples of background radiation?

A

Ground and buildings
Radon gas
Food and drink
Cosmic rays
Medical
Nuclear power
Weapons

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2
Q

What is the order of the Electromagnetic Spectrum?

A

Radio, Microwave, Infra-red, Visible, Ultraviolet, X-ray, gamma ray

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3
Q

What Electromagnetic wave has low frequency and energy and a long wavelength?

A

Radio waves

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4
Q

What Electromagnetic wave has high frequency and energy and a short wavelength?

A

Gamma rays

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5
Q

What has the lowest frequencies of visible light?

A

Red light

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6
Q

What has the highest frequencies of visible light?

A

Violet light

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7
Q

What are radio waves used for?

A

Broadcasting and communications

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8
Q

What are microwaves used for?

A

Cooking and satellite transmissions

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9
Q

What are infra-red waves used for?

A

Heaters and night visions equipment

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10
Q

What is visible light used for?

A

Optical fibres and photography

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11
Q

What are ultraviolet waves used for?

A

Fluorescent lamps

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12
Q

What are X-rays used for?

A

Observing internal structure of objects and materials

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13
Q

What are Gamma rays used for?

A

Sterilising food and medical equipment

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14
Q

How can microwaves be damaging to the human body?

A

Internal heating of body tissue

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15
Q

How can infra-red waves be damaging to the human body?

A

Skin burns

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16
Q

How can ultraviolet waves be damaging to the human body?

A

Damages the surface of cells and causes blindness

17
Q

How can gamma rays be damaging to the human body?

A

Cancer, mutation

18
Q

What is a simple protective measure to be taken when near microwaves?

A

Keep at least 50m distance away

19
Q

What is a simple protective measure to be taken when near infra-red waves?

A

Goggles or face shields

20
Q

What is a simple protective measure to be taken when near ultraviolet waves?

A

Suncream, sunglasses

21
Q

What is a simple protective measure to be taken when near Gamma rays?

A

Barriers of concrete, water or lead

GCSE Physics (11 decks)

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