Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

SPI > Sound Waves 2 > Flashcards

Sound Waves 2 Flashcards

1
Q

Is intensity; power; amplitude directly or indirectly related?

A

Directly Related

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is intensity proportional to?

A

Power or mathematically, to the waves Amplitude².

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What always follows the word ampitude?

A

squared

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is power related to?

A

Amplitude²

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is intensity related to?

A

Amplitude²

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What happens to intensity if a waves power is doubled?

A

intensity is doubled

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What happens to intensity if a waves power is quartered?

A

intensity is quartered.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What happens if a waves amplitude is doubled?

A

Intensity increases 4 times.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the symbol for wavelength?

A

λ

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What term describes the length/distance of one complete cycle?

A

Wavelength

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is a wavelength determined by?

A

both the sound source and medium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Can wavelength be adjusted?

A

No

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the propagation speed of sound in soft tissue?

A

1.54

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the only parameter determined by both sound source and Medium?

A

Wavelength

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How is wavelength and frequ3eny related?

A

inversely related

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the equation for finding the wavelength of sound in a medium?

A

1.54 ÷ frequency

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

As frequency increases, wavelenght…..

A

decreases

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Does a shorter wavelength produce higher or lower quality images?

A

Higher quality images.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

How are wavelength and intensity related?

A

unrelated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

_____________ is the distance a sound wave travels in 1 second.

A

Propogation speed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is the unity for propagation speed?

A

distance ÷ time

Meters/second mm/µs

22
Q

What is propagation speed determined by?

A

Medium only

23
Q

True or False, all sound travels at the same speed regardless of frequency.

A

True.

24
Q

Can propagation speed be adjusted?

A

No

25
Q

What does propagation speed depend on?

A

Density and stiffness

26
Q

What are the 3 ways you can report speed of sound in soft tissue?

A

1.540 m/s
1.54 mm/µs
1.54 km/s

27
Q

How is propagation speed determined?

A

Frequency x wavelength

28
Q

What does sound travel fastest in?

A

solids

29
Q

What does sound travel slowest in?

A

gasses

30
Q

What characteristics affect the speed of sound?

A

density and stiffness

31
Q

What describes the ability of an object to resist compression?

A

stiffness

32
Q

How is stiffness and speed related?

A

directly

33
Q

What happens to the speed of sound when a medium becomes stiffer?

A

Speed of sound increases.

34
Q

How can the degree of stiffness be described?

A

With the term elasticity or compressibility

35
Q

Is elasticity/ compressibility the same or different as stiffness?

A

opposite of stiffness

35
Q

How is elasticity and speed related?

A

inversely

36
Q

How are non-stiff medium described?

A

compressible or elastic

37
Q

What describes the weight of a material?

A

Density

38
Q

Does non-dense material weight a lot or a little?

A

A Little

39
Q

How are density and speed related?

A

Inversely

40
Q

What happens to the speed of sound as a medium becomes more dense?

A

speed of sound decreases

41
Q

True or False, Sound travels faster in medium with a higher density?

A

False, sound travels faster in a medium with lower density.

42
Q

If 2 medium have the same stiffness, which one will have the lower speed?

A

The denser medium.

43
Q

True or False, when density decreases, speed decreases.

A

False

44
Q

Materials that are stiff, but not dense will have _______ speed.

A

fast

45
Q

Materials that are not still but very dense will have a _______ speed.

A

slower

46
Q

Which parameter is only determined by the medium?

A

speed

47
Q

What 3 parameters are adjustable?

A

Amplitude, power, and intensity

48
Q

What are bioeffects?

A

The effects of sound on tissue.

49
Q

What are acoustic propagation properties?

A

The effects of tissue of a sound wave.

SPI (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions