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Physics Wave/Sound Review Flashcards

1
Q

Amplitude

A

Height from the midline

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2
Q

Order of the electromagnetic spectrum

A

Radio, Microwave, Infrared, Visible Light, Ultra violet, x-ray, Gamma rays

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3
Q

Radio and television have what energy, frequency, and wavelength

A

Low energy, ow frequency, and long wavelength

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4
Q

Gamma rays have what energy, frequency, and wavelength

A

High energy, high frequency, short wavelength

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5
Q

How does a Decibel Scale work

A

Logarithmic, every 20 dB increase, you multiple 10

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6
Q

Medium

A

Air, water, metals

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7
Q

Pitch

A

How high or low a note is

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8
Q

Periodic wave

A

number of waves produced per unit of time

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9
Q

Frequency

A

repetitive series of pulses

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10
Q

Vibrate

A

to move back and forth rapidly

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11
Q

Transverse wave

A

The disturbance is PERPENDICULAR to the direction of the waves travel.

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12
Q

Longitudinal wave

A

the disturbance is PARALLEL to the direction of the waves travel

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13
Q

Surface wave

A

When medium’s particle follow a circular path; either both perpendicular and parallel at times.

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14
Q

A wave carries what through space

A

energy

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15
Q

WHat are the names of the three bones that are evolutionary important to human eharing

A

Stapes, Incus, Malleus

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16
Q

Mathematical difference between frequency and period

A

They are inverses of each other

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17
Q

Frequency

A

How many cycles of an oscillation occur per second

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18
Q

Period

A

Amount of time it takes a wave to vibrate one full cycle

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19
Q

What is the speed of sound in air at 20 degrees Celsius

A

343m/s

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20
Q

How do you determine the speed at any other degree Celsius

A

You add 0.6 for every increase in 1 degree celsius

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21
Q

What is the major difference between S and P waves

A

P waves can travel through liquids, solids, and gases
S waves can only travel through solids (stops at outer core)

22
Q

Doppler effect

A

The change in frequency of sound caused by movement of either the source, the detector, or both

23
Q

What are four applications of the Doppler effect

A

Speed of baseball/cars
Astronomers
Physicians
Bats

24
Q

Pitch

A

The highness or lowness of a sound

25
Q

Loudness

A

The intensity of the sound as perceived by the ear and interpreted by the brain

26
Q

How are pitch and loudness related to waves

A

They both relate to waves because pitch relates to the frequency and the loudness related to the amplitude

27
Q

What is wavelengths symbol named

A

Lambda

28
Q

What is wavelength measured in

A

Meters

29
Q

The number of waves that pass a point in 1 second

A

Frequency

30
Q

Any disturbance that carries energy and travels through matter

A

Wave

31
Q

A special kind of wave that does not need to travel through matter

A

Electromagnetic wave

32
Q

A low energy wave that can be used to transmit communications

A

Radio Waves

33
Q

High energy waves that can be used to treat cancer

A

Gamma Rays

34
Q

A type of radio wave that can be used to measure speed and position

A

Radar

35
Q

Transmits thermal energy, hear releases more of it

A

Radiant energy

36
Q

The energy carried by an EM wave, we feel as heat

A

Infrared Waves

37
Q

The distance from one wave crest to the next wave crest

A

Wavelength

38
Q

The fastest that any EM wave can travel

A

Speed of light

39
Q

High energy waves that can be used to take pictures of bones

A

X Rays

40
Q

A type of electromagnetic wave that behaves as a particle

A

Photon

41
Q

A type of radio wave that can be used to cook food

A

Microwaves

42
Q

The part of electromagnetic spectrum that we can see

A

Visible Light

43
Q

Sun rays, can damage skin

A

Ultraviolet Waves

44
Q

Sound Wave

A

A pressure oscillation that is transmitted through matter

45
Q

Sound is what type of wave

A

Longitude wave

46
Q

Sound level

A

Measure of intensities on a logarithmic scale

47
Q

Decibel

A

Unit of measurement for sound level

48
Q

Two characteristic that are affected by the medium through which sound passes

A

Velocity and wavelength

49
Q

Two characteristics that not NOT affected by the medium through which sound passes

A

frequency and period

50
Q

Blue shifted

A

When light source approached observer, there is an increase in measured frequency, so wavelength of light shortens

51
Q

Red shifted

A

When a light source recedes from observer this is the decrease in measured frequency, so wavelength lengthens.

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