Sound Waves, Ocean Waves, and Microwaves!!! 03/04/18
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Summary: Sound waves are mechanical waves or a vibration of molecules. Sound waves move energy not matter. Pitch is the highness or lowness of the sound created whereas volume is how loud or quiet a sound is. Frequency is how many 'cycles' of a wave occur in one second, the amplitude is how large a wave is from the middle to the crest and the wavelength is the measure from crest to crest. Pitch is related to frequency because the higher the frequency the higher the pitch is. A sound wave that has a bigger wavelength will have a low frequency, low pitch, and low energy. Electromagnetic waves are electric and magnetic fields that move through space extremely fast. The electromagnetic spectrum is the whole range of electromagnetic waves that are in order based on increasing frequency.
S&EP-Arguing From Evidence: I worked alongside my tablemates in searching for the best explanation to the following question: Make your conclusions on sound based on pitch, travel, etc.? I did some research on sound waves and how they travel and sound through a lab. I then discussed how sound travels and how sound is created with my tablemates and together we figured out that: Sound is a vibration of molecules caused when a force interacts with an object. The evidence we gathered during the investigation was that when the tuning fork was met with the force of the pencil hitting it, it began to make a ringing noise. Also, I saw that vibrations can travel through objects. For example, the force of the pencil hitting the tuning fork caused vibrations which were then "transmitted" to the ping-pong ball through the slightest touch. Lastly, we saw that sound travels faster in water because when the tuning fork was vibrating at a small scale, it was amplified when it hit the water. All in all, my team used evidence from our investigation to support our conclusion.
XCC-Structure and Function: Once sound waves enter the outer ear, they travel through a canal to the middle ear which the main job is to "convert" sound waves into vibrations. The eardrum, located in the middle ear, is a tight piece of skin stretched out like a drum. The eardrum feels these vibrations which move three small bone; the anvil, the hammer, and the stirrup. These small bones, all attached to each other have the job of aiding the vibrations on their journey. From there, these vibrations are delivered to the inner ear, or more precisely the cochlea. When the tiny bones in the middle ear vibrate, it makes the liquid in the cochlea move. The hair cells in the cochlea move as the vibrations reach them and send nerve signals so the brain can comprehend the sound. These hair cells can be long and flowy or short and stiff and certain types move based on the vibrations, but if vibrations are too loud the tips can break off making them unable to send accurate nerve signals to your brain. All in all, each part of the ear such as the cochlea, the eardrum and the hair cells use their structure to support their function (as long as you do not damage your ears with loud music.)
Multiplier:
This week I was a mutant, to be more specific a learner because I tried to learn as much as possible on the topic of waves and sound waves.
Summary: Sound waves are mechanical waves or a vibration of molecules. Sound waves move energy not matter. Pitch is the highness or lowness of the sound created whereas volume is how loud or quiet a sound is. Frequency is how many 'cycles' of a wave occur in one second, the amplitude is how large a wave is from the middle to the crest and the wavelength is the measure from crest to crest. Pitch is related to frequency because the higher the frequency the higher the pitch is. A sound wave that has a bigger wavelength will have a low frequency, low pitch, and low energy. Electromagnetic waves are electric and magnetic fields that move through space extremely fast. The electromagnetic spectrum is the whole range of electromagnetic waves that are in order based on increasing frequency.
S&EP-Arguing From Evidence: I worked alongside my tablemates in searching for the best explanation to the following question: Make your conclusions on sound based on pitch, travel, etc.? I did some research on sound waves and how they travel and sound through a lab. I then discussed how sound travels and how sound is created with my tablemates and together we figured out that: Sound is a vibration of molecules caused when a force interacts with an object. The evidence we gathered during the investigation was that when the tuning fork was met with the force of the pencil hitting it, it began to make a ringing noise. Also, I saw that vibrations can travel through objects. For example, the force of the pencil hitting the tuning fork caused vibrations which were then "transmitted" to the ping-pong ball through the slightest touch. Lastly, we saw that sound travels faster in water because when the tuning fork was vibrating at a small scale, it was amplified when it hit the water. All in all, my team used evidence from our investigation to support our conclusion.
XCC-Structure and Function: Once sound waves enter the outer ear, they travel through a canal to the middle ear which the main job is to "convert" sound waves into vibrations. The eardrum, located in the middle ear, is a tight piece of skin stretched out like a drum. The eardrum feels these vibrations which move three small bone; the anvil, the hammer, and the stirrup. These small bones, all attached to each other have the job of aiding the vibrations on their journey. From there, these vibrations are delivered to the inner ear, or more precisely the cochlea. When the tiny bones in the middle ear vibrate, it makes the liquid in the cochlea move. The hair cells in the cochlea move as the vibrations reach them and send nerve signals so the brain can comprehend the sound. These hair cells can be long and flowy or short and stiff and certain types move based on the vibrations, but if vibrations are too loud the tips can break off making them unable to send accurate nerve signals to your brain. All in all, each part of the ear such as the cochlea, the eardrum and the hair cells use their structure to support their function (as long as you do not damage your ears with loud music.)
Multiplier:
This week I was a mutant, to be more specific a learner because I tried to learn as much as possible on the topic of waves and sound waves.
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