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Physics GCSE 2022 > topic 6 waves > Flashcards

topic 6 waves Flashcards

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1
Q

what are the two types of waves

A

transverse

longitudinal

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2
Q

what is a transverse wave

A

a wave for which the oscillations are perpendicular to the direction of energy transfer

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3
Q

what is a longitudinal wave

A

a wave for which the oscillations are parallel to the direction of energy transfer

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4
Q

2 examples of transverse waves

A

electromagnetic and seismic s waves

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5
Q

2 examples of longitudinal waves

A

sound waves and seismic p waves

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6
Q

WHAT IS THE WAVES AMPLITUDE

A

the maximum height / displacement of a wave from its original point

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7
Q

what is wavelength

A

distance from a point on a wave to the same position on the adjacent of the wave

usually points of a peak or trough to trough

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8
Q

what is the frequency of waves

A

the number of waves that pass per second

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9
Q

units for frequency

A

Hz, Hertz

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10
Q

what does it mean when a frequency is 200Hz

A

200 waves pass per second

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11
Q

what is wave speed

A

the speed which the wave moves or at which energy is transferred through a medium

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12
Q

what does a wave transfer

A

energy

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13
Q

give equation for wave speed

A

frequency x wavelength

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14
Q

what word is used when a wave bounces off a surface

A

reflection

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15
Q

how do sound waves travel through a solid

A

the particles in the solid vibrate and transfer ke through the material

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16
Q

what is the frequency range of human hearing

A

20 hz - 20kHz

17
Q

what are ultrasound waves

A

waves which have a frequency higher than the upper limit of human hearing (20kHz)

18
Q

what natural event causes seismic waves to be produced? what type of waves are produced

A

earthquakes

they produce p waves and s waves

19
Q

difference of p waves and s waves and what they can travel through

A

p waves travel through solids and liquids

s waves only travel through solids not liquids

20
Q

what technique is used to detect object deep in water depth

A

echo sounding

high frequency sound waves are emitted and reflected and detected

tome difference between going down and back up

Physics GCSE 2022 (4 decks)

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