4.Pitch is the perception of high/low noted, which depend on the frequency of the waves. 
5.Amy and Emily 
6.  

A transducer both sends sound waves into the body and receives the echoing waves. When the transducer is pressed against the skin, it directs small pulses of inaudible, high-frequency sound waves into the body. 

7. 
  

When the siren is coming closer, the pitch is higher. When the ambulance is driving past, the pitch drops. The closer one is to the siren, the higher the frequency wave there is. 

 

The reinforcement or prolongation of sound by reflection from a surface or by the synchronous vibration of a neighboring object.

 

A decibel (dB), unit is used for expressing the ratio between two physical quantities, usually amounts of acoustic or electric power, or for measuring the relative loudness of sounds. One decibel (0.1 bel) equals 10 times the common logarithm of the power ratio.

A harmonic is a component frequency of an oscillation or wave. A harmonic is defined as an integer multiple of the fundamental frequency.

 12.  

v=sqrt(T/mu) 

  

 

3.*Insert diagram*

4.Pitch is the degree of height or depth a tone sound, depending upon relative rapidity vibrations. 

5.(Thats an opinion and idc what u put down haha)

6.Ultrasound waves create the effect of deep heat in your muscles and joints. In physical therapy, the deep heat of ultrasound increases the blood flow to the area being treated. 

7.

8.Resonance is the quality in a sound of being deep, full, and reverberating. 

9.A decibel is a unit used to measure the intensity of a sound or the power level of an electrical signal by comparing it with a given level of a logarithmic scale. dB

10.Theres no 10

11.Harmonic is an overtone accompanying a fundamental tone at a fixed interval, produced by vibration of a string, column of air, etc., in an exact fraction of its length.

2) Rarefraction is the reduction of an item’s density, and is the opposite of compression. 

3)

4) Pitch is the quality of a sound governed by the rate of vibrations producing it; the degree of highness or lowness of a tone.

5) Our favorite character from Pitch Perfect is Fat Amy.

6) In an ultrasound examination, a transducer both sends the sound waves into the body and receives the echoing waves. When the transducer is pressed against the skin, it directs small pulses of inaudible, high-frequency sound waves into the body.

7) The pitch of a siren on an ambulance or a fire engine moves fast passing by you, the pitch of the siren abruptly drops in pitch. At first, the siren is coming towards you, when the pitch is higher. After passing you, the siren is going away from you and the pitch is lower, this is a the Doppler effect.

8) A resonance is when one object vibrating at the same natural frequency of a second object forces that second object into vibrational motion.

9)Decibel, unit for expressing the ratio between two physical quantities, usually amounts of acoustic or electric power, or for measuring the relative loudness of sounds. One decibel equals 10 times the common logarithm of the power ratio.

11)A harmonic is a signal or wave whose frequency is a whole-number multiple of the frequency of some reference signal or wave. The term can also refer to the ratio of the frequency of such a signal or wave to the frequency of the reference signal or wave.

12)

 

2)diminution in the density of something, especially air or a gas.

3)

4)the quality of a sound governed by the rate of vibrations producing it; the degree of highness or lowness of a tone.

5)I have never seen it and do not care about any of the characters.

6)It can be used to look inside the body.

7)As the ambulance approaches the siren sounds like it is getting higher because the sound waves change.

8)the reinforcement or prolongation of sound by reflection from a surface or by the synchronous vibration of a neighboring object

9)a unit used to measure the intensity of a sound or the power level of an electrical signal by comparing it with a given level on a logarithmic scale.

10) I’m sorry this question is far beyond my abilities (I do lack the ability to see the nonexistent after all.

11)a component frequency of an oscillation or wave

12)