Vocab
Define MEDIUM
A medium is the object that a wave (sound wave or otherwise) travels through.
How does sound move from one point to another?
Sound VIBRATES through the particles of a medium, moving from one point to another.
Draw on your whiteboards a graph with high amplitude and high frequency.
Lets see 'em!
If a sound has a high amplitude, what will it sound like?
High amplitude means that the sound has a high volume!
What artist is performing at this year's Super Bowl halftime show?
Kendrick Lamar
Define AMPLITUDE
The height of the wave from its rest position to its peak position.
When sound connects to other objects, they start to move. This type of energy is called KINETIC ENERGY.
I am going to show three graphs on the board. Tell me which one will have the lowest pitch.
The green graph!
What is more likely to cause hearing damage: a sound with a high frequency or a sound with a high amplitude?
A sound with a high amplitude will cause more hearing damage because high amplitude is higher volume/energy.
Who was the 16th president of the United States?
Abraham Lincoln
Define FREQUENCY
The amount of waves that occur in one second.
Sound waves carry ________ but do not move ________.
I am going to show three graphs. Which of these graphs has the lowest volume.
Blue AND purple.
What is the role of the ear drum in hearing?
Ear drums AMPLIFY the sound that is being heard (or make the sound louder).
Who is the vice president-elect of the United States?
J.D. Vance
Define MATTER
Matter is what makes up objects on a molecular level. A common type of matter that we talk about with respect to sound is air particles.
What is more impactful to the amount of energy that a sound carries: amplitude or frequency?
Amplitude! Higher frequencies have slightly higher energies, but not SO much higher.
If a sound has a high frequency, it has a low...
How does the basilar membrane detect sounds?
Little hairs on the basilar membrane vibrate based on what pitch that is being heard.
What city/state does Mr. Duffy commute from every day?
Stamford, CT
Define VIBRATIONS
When something moves back and forth without changing position overall. NOTE: VIBRATIONS ARE THE SOURCE OF ALL SOUND WAVES
Why does more energy travel through gas media than solid and liquid media?
The particles are more spread out, and therefore can vibrate more.
How do scientists generate graphs of sound waves?
They use special equipment to gauge how the particles of the medium move as the wave goes from one point to another.
What are the three bones behind the ear drum called?
Ossicles!
List all 6 of the original Avengers.
Iron Man, Captain America, Black Widow, Hawkeye, Thor, Hulk.