SOUND

Question 1

What do waves carry from on location to another?

Answer 1

Energy

Question 2

True or False, Light, sound, heat and magnetic are ALL forms of waves?

Answer 2

True

Question 3

Can sound travel through a vacuum?

Answer 3

No

Question 4

What does the word compressed mean?

Answer 4

squeezed together

Question 5

What does the term rarefied mean?

Answer 5

Stretched apart

Question 6

True or False, sound travels in a curved line?

Answer 6

False, sound travels in a straight line.

Question 7

True or False, Sound waves are transverse waves?

Answer 7

False, sound waves are longitudinal waves.

Question 8

What are the effects of the sound waves when passing through tissues?

Answer 8

Biological effects

Question 9

What is another term for sound waves

Answer 9

Acoustic waves

Question 10

What are three acoustic variables?

Answer 10

Distance, Pressure, and density

Question 11

What are the 7 acoustic parameters used to describe characteristics of a wave.

Answer 11

Period
Frequency
propagation speed
amplitude
wavelength
intensity
power

Question 12

What are the units for pressure?

Answer 12

Pascals

Question 13

What is the term for concentration of mass in a volume?

Answer 13

Density

Question 14

What are the units for distance?

Answer 14

Cm, miles, feet,mm.

Question 15

What is the term for concentration of force in an area?

Answer 15

Pressure

Question 16

What is the term for a measure in particle motion?

Answer 16

Distance

Question 17

What are the units for density?

Answer 17

kg/cm3

Question 18

How do particles move in a transverse wave?

Answer 18

Perpendicular to the direction the wave transmits

Question 19

What is another word for transmit?

Answer 19

Propagate

Question 20

How do particles move in a longitudinal wave?

Answer 20

In the same direction, the wave propagates.

Question 21

What kind of paired waves have their peaks occur at the same time and location?

Answer 21

In-phase waves

Question 22

What kind of paired waves have their maximum peaks and minimum peaks occur at different times?

Answer 22

Out-of-phase waves

Question 23

What is another name for the in-phase waves?

Answer 23

In Step

Question 24

What is another name for out-of-phase waves?

Answer 24

Out of step

Question 25

What occurs when more than one sound beam travels in a medium and multiple beams arrive at an identical location at the exact same time?

Answer 25

The waves combine to form a single wave (interference)

Question 26

What type of wave do you see constructive interference with?

Answer 26

In-phase waves.

Question 27

A combination of in-phase waves results in what?

Answer 27

Constructive interference (single wave with greater amplitude)

Question 28

What type of wave do we see destructive interference with?

Answer 28

Out-of phase waves.

Question 29

With destructive interference, does the wave have greater or lesser amplitude?

Answer 29

Lesser

Question 30

A Combination of out-of phase waves results in what?

Answer 30

Destructive interference (single wave with lesser amplitude)

Question 31

What type of interference occurs with waves of different frequencies?

Answer 31

Both destructive and constructive interference

Question 32

True or False, sound waves are a series of compressions and rectification.

Answer 32

FALSE. Sound waves are a series of rarefactions and compressions

Question 33

How is speed and compressibility related?

Answer 33

inversely

Question 34

With constructive interference does the wave have greater or lesser amplitude.

Answer 34

Greater