# data[].attributes.body
1. Compression implements vibration from one end of a sound wave to the other.
2. Rarefaction is the diminution in the density of an object.
3. See picture below all answers.
4. Pitch is a sound is the ear and brain interpreting the frequency of the sound.
5 .

# data[].attributes.body
1)Compression is the part of the wave where the molecules are closest together.

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)

# data[].attributes.body
1. Sound waves are the compression of molecules in the air.
2. Rarefaction is the reduction of density of gas.
3. See pictures above, Mr. Clarke.
4. The degree of how high or low a sound can go.
5. My favorite character is Beca (Anna Kendrick) because she's a unapologetically hardcore woman.
6. Ultrasound is an imaging technique that hospitals use to see internal organs of a person.
7. When an ambulance approaches, the Doppler Effect makes the person hear a super high pitch within a split second before the ear adjusts back to a normal hearing of the pitch.
8. Resonance is the sound oscillating throughout a structure with varying amplitudes.
9. A dB is a unit of measurement for the pitch of something.
11. Harmonics are the overtones produced by vibrations of string instruments.

# data[].attributes.body
1. Based off of the compression in the sound waves, the frequency of the waves changes, thereby changing the noise.
2. Rarefaction is where the particles of the longitudinal waves are farthest apart.
4. The pitch is the quality of sound governed by the rate of vibrations producing it.
5. Fat Amy
6. Ultrasound as a medical technique can be used in order to break up different materials or view the inside of the body.
7. The Doppler Effect works with an approaching ambulance as the sound waves change in length as the car moves.
8. Resonance is the quality in a sound of being deep and oscillating with a greater amplitude.
9. A decibel is a unit of measurement used to describe how loud something is. dB
11. A component frequency of an oscillation or wave. This is at a fixed interval which is the signal's frequency.
12. A harmonic series for a vibrating string is v = sqrt(T/mu)
3.

# data[].attributes.body
1. sound waves are compressions which occur when molecules are compressed
2.Rarefaction is diminution in the density of something, especially air or a gas

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.

# data[].attributes.headline
Kameron Walker, Emily Butler, and Jessica Ponce 

# data[].attributes.subject
Kameron Walker, Emily Butler, and Jessica Ponce 

# data[].attributes.body
1. Compression of sound waves are were the longitudinal waves are closest. This uses sound to
2. Rarefaction is where the particles of the longitudinal waves are farthest apart.
3.

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.

(8) What is resonance?

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

(9) What is a decibel and units?

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.

(11) Explain harmonics?

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)

# data[].attributes.body
1. sound waves are made up of compressions. Compressions happens when molecules are compressed.
2. A rarefraction is when molecules are given extra space and expand.
3. See picture
4. Pitch is  the quality of a sound according to the rate of vibrations producing it
5. fat Amy
6. It breaks kidney stones. for example.
7. The time it takes for the sound to reach the ear changes the frequency of the sound. Farther away = more frequency
8. When a vibrating system or external force drives another system to oscillate with greater amplitude at specific frequencies
9.  A decibel is a unit of measerment used to describe how loud something is. dB
11. Harmonics is an overtone accompanying tone at a fixed interval aka the wave's signal frequency.
12. Resonance causes a string to vibrate and make sound. A picture is here: https://upload.wikimedia.org/wikipedia/commons/5/5c/Standing_waves_on_a_string.gif
v = sqrt(T/mu)

# data[].attributes.body
1. Sound waves are made up of compressing sound waves into a more dense areas. Compression occurs when molecules are compressed.
2. Rarefaction, in the physics of sound, segment of one cycle of a longitudinal wave during its travel or motion, the other segment being compression.
3.  4. Pitch is the rate of vibrations. Higher pitch means more vibration.
5. We like dis person "Anna Kendrick"
6. An ultrasound penetrates through the upper layer of skin and the high frequency sound waves and their echos to create an image.
7.The Doppler effect works, as the object comes closer to you its a higher pitch because of the change in distance and compression, and then when it moves further away it switches to a lower pitch
8. Resonance is a phenomenon is which a vibrating system or external force drives another system to oscillate with greater amplitude at specific frequencies .
9.a Decibel is a unit to measure the intensity of sound waves. The unit is  dB
11. Harmony  is a second tone at a fixed interval produced by the  vibration of a certain object.
12 A harmonic series for string is the  ta-dah! and it finds the harmonic mean between the neighboring arcs

# data[].attributes.body
1. Compressions alternate with rarefactions to produce a wave.
2. A rarefaction is the segment of one cycle of longitudinal wave during its travel or motion. A rarefaction is the opposite of a compression in where it is a release.
4. Pitch is the sensation of a frequency. High frequency is a high pitch while low frequency is low pitch.
5. Chloe is our favorite Pitch Perfect character.
6. An ultrasound works by high frequency sound waves transmitting from the probe into the body. The transducer collects the sounds that bounce back and the computer uses those sound waves to create an image
7. With ambulances, the Doppler Effect describes an apparent upward shift in frequency for observers, where the sound of the ambulance becomes louder and more shrill    as it gets closer, because the closer you are the highest frequency wave there is.
8. A resonance is a natural frequency of vibration determined by the physical parameters of the vibrating object.
9. Decibal is the 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. The unit of measurement is a dB.
10. Harmonics are the frequencies that produce certain patterns of wavelengths for each object.
11.
3.

# data[].attributes.body
1. A longitudinal wave consists of repeating parsers of compression and rarefactions and is commonly measured as the distance from one compression to the next adjacent compression.
2. Rarefaction is a reduction of an items density.
3.https://www.google.com/searchq=tuning+fork+with+compression&client=safari&channel=mac_bm&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjWz-uz4fvZAhVlF2MKHcSpA4YQ_AUIDCgD&biw=1280&bih=600#imgrc=55tY8xfPb6fGAM:
4. Pitch is the sensation of a frequency.
5. Fat Amy
6. Ultrasound is a medical technique that uses high frequency sound waves and their echoes.
7. The light and sound waves become less frequent and quite.
8. Resonance is when one object vibrating at the same natural frequency of a sound object forces that sound object into vibrational motion.
9. A decibel is a ratio between two physical quantities.
11. Overtone accompanying a fundament al tine at a fixed interval
12. A harmonic series for string is https://upload.wikimedia.org/wikipedia/commons/5/5c/Standing_waves_on_a_string.gif

# data[].attributes.body
1. Compression and rare functions produce a wave
2.  Rare faction- Diminution in the density of something, especially air or a gas
3. See picture below
4. The quality of a sound governed by the rate of vibrations producing
5. Becca
6.  Ultrasound uses high frequency sound waves and their echos
7.  The light and sound waves become less frequent as the ambulance drives away
8. Resonance- the quality in a sound of being deep, full and reverberating
9. Decibel-Unit for expressing the ratio between two physical quantities; Units- standards for measurement of physical quantities that clear definitions to be useful
11.  Harmonic-  a signal/wave whose frequency is an intergral multiple of the frequency of such of a signal/wave to the frequency of the reference signal/wave
12.  The harmonics will move depending on the overtone applied.

# data[].attributes.body
1)Compression is when molecules are forced, or pressed, together, and this relates to sound waves because the vibrations and energy of sound waves are either compressed together or the opposite.

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)

# data[].attributes.body
1. Waves are made of compressions and rarefactions. Compression happens when molecules are forced or pressed together. As the molecules are pressed together, they pass the kinetic energy to each other. Thus, sound energy travels outward from the source.
2. Rarefaction is when molecules are given extra space and are able to expand. It is the opposite of compression.
3. (see below)
4.  Pitch is the sensation of a frequency, where a low pitch wave has low frequency and a high pitch wave has high frequency.
5. Our favorite character from pitch perfect is Chloe.
6. Ultrasound is a medical imaging technique that uses high frequency sound waves and their echoes. The reflected waves are picked up by the probe and relayed to the machine.
7. The Doppler effect is a change in frequency of a wave as the source changes position. With an ambulance, it sounds higher when it is approaching and lower when it is going away.
8. Resonance is a phenomenon in which a vibrating system or external force drives another system to oscillate with greater amplitude at specific frequencies.
9. A unit used to measure the intensity of a sound of the power level of an electrical signal by comparing it with a given level on a logarithmic scale. The units is dB.
11. Harmonic is a component frequency of an oscillation or wave.
12. A harmonic series is the sequence of sounds in which the frequency of each sound is an integer multiple of the lowest frequency.