Sound Waves Flashcards

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1
Q

High frequency means…

A

High pitch

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2
Q

Low frequency means…

A

Low pitch

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3
Q

High amplitude means…

A

High volume (sound)

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4
Q

Low amplitude means…

A

Low volume (sound)

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5
Q

Resonance

A

When the matching vibration of another object increases the amplitude

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6
Q

Doppler Effect

A

Change in pitch (frequency)
-An aparent change in frequency of a sound caused by the motion of a source or observer
-If frequency increases, wavelength decreases

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7
Q

Shock wave

A

A lot of pressure, high pressure = high volume

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8
Q

Sonic cone

A

When something travels faster than the speed of sound

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9
Q

Sonic math

A

Mach Number: how fast something is going of an object to the speed of sound

Mach # = V(object)/V(sound)

V(sound)=330-350

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10
Q

d = (v)(t)

A

distance (sound moving) = speed (340) (t)

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11
Q

Reflection

A

An echo, absorbed by surface

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12
Q

Refraction

A

When different parts of the wavefront travels at different speeds (and medium)

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13
Q

Interference

A

When two waves occupy the same space at the same time (identical)

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14
Q

Diffraction

A

The bending of waves around the barrier

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