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Science > HIGH FREQUENCY EM WAVES > Flashcards

HIGH FREQUENCY EM WAVES Flashcards

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1
Q

Waves beyond the visible light spectrum

A

HIGH FREQUENCY EM WAVES

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2
Q

EXAMPLES OF HIGH FREQ EM WAVES

A

ULTRAVIOLET RAYS, X-RAYS, GAMMA RAYS, COSMIC RAYS

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3
Q

_ main source of uv rays

A

SUNLIGHT

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4
Q

Production and absorbtionnof calcium

A

VITAMIN D

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5
Q

When the sun is closer to the horizon,

A

The amount of uv radiation that earth receives is low

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6
Q

Two health problems that is caused by UV rays

A

SKIN CANCER AND CATARACT

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7
Q

UV CAN BE CLASSIFIED AS

A

UVA, UVB, UVC

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8
Q

Wavelength of UV rays

A

40 TO 400

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9
Q

Greater possibility that _ will cause more damaging effects to the skin

A

UVA

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10
Q

It can enter the cornea of the eyes…

A

UVA rays

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11
Q

Has been linked to the development of different types of cataract

A

UV RAYS

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12
Q

Correlation of UVA with the formation of an eye problem called

A

MACULAR DEGENERATION

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13
Q

_ Rays HAVE A SHORTER WAVELENGTH BUT HIGH ENERGY THAN UVA

A

UVB

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14
Q

_ rays stimulate the production of melanin

A

UVB

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15
Q

A pigment that gives skin color

A

MELANIN

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16
Q

_ rays are the most harmful to the eyes

A

UVC

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17
Q

The _ blocks these rays and prevents them from reaching Earth’s surface

A

OZONE LAYER

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18
Q

Sunscreen that protect skin by absorbing UV rays are called

A

ABSORBERS

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19
Q

Reflect the UV rays called

A

BLOCKERS

20
Q

Are electromagnetic waves of higher frequencies than those of ultraviolet rays

A

X-RAYS

21
Q

Emitted by machines used for medical diagnosis

A

X-RAYS

22
Q

To measure tiny objects and detect flaws in production

A

X-RAYS

23
Q

Originate in nuclear power plants and in the radioactive substances in rocks and other earth materials

A

X-RAYS

24
Q

They carry energy strong enough to cause the ionization of atoms

A

X-RAYS

25
Q

Can pass through materials at different rates

A

X-RAY RADIATION

26
Q

Are also used for dental examination

A

X-RAYS

27
Q

It is considered as a health hazard because of its ionizing property

A

X-RAYS

28
Q

_ x-rays use low dose of radiation

A

BONES

29
Q

CAN CAUSE GENETIC DAMAGE OR MUTATION WHICH MAY LEAD TO BIRTH DEFECTS OR DISEASES

A

X-RAYS

30
Q

Are electromagnetic waves whose energy is 10 k times that of visible light

A

GAMMA RAYS

31
Q

Is also an ionizing radiation

A

GAMMA RADIATION

32
Q

Have greater penetrating power than x-ray

A

GAMMA RAYS

33
Q

They can penetrate many kinds of materials such as concrete walls up to 3m thick and human tissues

A

GAMMA RAYS

34
Q

ARE EMITTED BY NUCLEUS OF A RADIOACTIVE NUCLIDE

A

GAMMA RAYS

35
Q

EMITTED BY ELECTRONS THAT SURROUND THE NUCLEUS

A

X-RAYS

36
Q

HEAVY NUCLIDE OF RADIOACTIVE MATERIALS DURING RADIOACTIVE DECAY

A

GAMMA RAYS

37
Q

is commonly found in soil, water, and potassium rich food

A

POTASSIUM-40

38
Q

can kill cancer cells and shrink malignant cells

A

GAMMA RAYS

39
Q

Another gamma ray emitter that can also kill cancer cells

A

CESIUM-137

40
Q

gamma ray emitter that is used to treat cancer cells

A

COBALT-60

41
Q

Energetic cosmic events in space

A

COSMIC RAYS

42
Q

These rays are produced by stars such as the sun

A

COSMIC RAYS

43
Q

Are composed of high energy particles of protons and atomic nuclei

A

COSMIC RAYS

44
Q

Filtered out by the atmosphere

A

COSMIC RAYS

45
Q

COSMIC RAYS results in the _

A

NORTHERN LIGHTS (AURORA BOREALIS) IN NORTHERN HEMISPHERE AND SOUTHERN LIGHTS (aurora australis) IN SOUTHERN HEMISPHERE

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