SCIENCE WAVES Flashcards

1
Q

Wave

A

a wave is a means of transferring energy from one source to another

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2
Q

Transverse wave

A

a wave with oscillations perbenduiclear to the direction of energy transfer e.g. elctomagnetic

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3
Q

Longitudinal wave

A

a wave with oscillations parallel to the direction of energy transfer e.g. sound waves

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4
Q

Crest

A

top of a longudila wvae

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5
Q

Trough

A

bottom of a longtuifla wave

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6
Q

Compression

A

a region of high pressure due to particles being close together

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7
Q

Rarefaction

A

region of a longitudinal wave where the particles of the medium are spread apart

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8
Q

Amplitude

A

the maximum displacement of a point on a wave away from its undisturbed postion

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9
Q

Wavelength

A

distance between crests

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10
Q

Frequency

A

the number of waves passing a point each second measured in hertz(Hz)

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11
Q

Period

A
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12
Q

Wave speed

A

the distance traveled by a given point on a wave in a given interval of time

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13
Q

Electromagnetic spectrum

A
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14
Q

visible Light

A

A small part of the electromagnetic spectrum
-a form of energy
-

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15
Q

Photons

A

light particles

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16
Q

Compression

A

a region of high pressure due to particles being close together

17
Q

Electromagnetic waves

A

transverse waves that transfer energy from the source of the waves to an absorber

18
Q

Convection

A

Particles close to the source gain energy, move faster and further apart. this makes the fluid less dense and it rises.air moves for, areas of high pressure to areas of low pressure creating wind

19
Q

Conduction

A

Vibrating molecules collide with other molecules making them vibrate and a chain reaction starts as newly vibrating molecules also hit another molecule

20
Q

radiation

A

Heat waves move at the speed of light and can move through space and matter, heat waves have long wavelengths that cause the particles in the matter to vibrate, heat radiation behaves like light when it hits the surface it can be transmitted, reflected or absorbed

21
Q

examples of longtuiditiam waves

A

ultrasound
earthquake
tsunami waves

22
Q

examples of transverse waves

A

ocean waves
electromagnetic waves
ripples on a surface

23
Q

propties of a longtuidial wave

A

-compressions
-rarefactions
-Amplitude

24
Q

what are the wave properties of light

A

-reflected
-refracted

24
Q

particle nature of light

A

-carry small packets of energy called photons

24
Q

properties of transverse waves

A

-Crest
-trough
-wavelenght