Waves- Vocab Flashcards

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1
Q

Frequency

A

The number of cycles a wave completes in a period of time; the number of times something happens in a period of time.

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2
Q

Wavelength

A

The difference between one peak to the next on a wave.

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3
Q

Crest

A

The highest point of a wave.

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4
Q

Trough

A

The lowest point of a wave.

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5
Q

Amplitude

A

The length from resting point to crest.

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6
Q

Longitudinal wave

A

A wave that occurs when the particles of a medium move parallel to the direction of the wave

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7
Q

Electromagnetic spectrum

A

The full range of frequencies of electromagnetic waves

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8
Q

Transverse wave

A

A wave that occurs when the particles of a medium are displaced perpendicularly to the direction of the wave

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9
Q

Compression

A

Occurs when rocks are squeezed by external forces directed toward one another to put stress on the rock, acting to decrease its volume or shorten its dimensions

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10
Q

Rare fraction

A

The lessening of density.

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11
Q

Refraction

A

to bend light as it passes through a material.

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12
Q

Diffraction

A

The bending of light as passes through or around an object.

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13
Q

Period

A

The time it takes for a cycle to pass a given point.

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14
Q

Medium

A

A substance through which energy travels.

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15
Q

Reflection

A

To strike a surface and bounce back in the opposite direction.

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16
Q

Radio waves are used for

A

Mobile phone

17
Q

Microwaves are used for

A

Tv transmissions

18
Q

Infrared waves are used for

A

Thermal imaging

19
Q

Visible light is used to

A

See colors

20
Q

Ultraviolet rays are used for

A

Sun beds

21
Q

X rays are used to

A

Take x-rays

22
Q

Gamma rays are used for

A

Radio therapy