Sound waves
Why can't sound be heard in space?
Because there's no medium for the sound waves to travel through
How does a harp produce sound?
The strings vibrate
What does the outer ear do?
Collects sound waves
What causes thunder?
Lightning
Name of the first bone in your ear to receive sound waves.
Hammer
What is any medium made of?
Particles
How does a drum produce sound?
The drum head vibrates
Why do people put their hand up to their ear when listening to something?
To collect more sound waves
How can earwax affect your hearing?
If earwax is blocking the eardrum, then vibrations can't reach the middle and inner ear
Name of the coiled-up part of your inner ear that is filled with hairs that sway back and forth in fluid.
Cochlea
If sound waves are taller, the sound will be...
Louder
How does a tuning fork produce sound?
The entire thing vibrates
How many bones do you have in the middle ear?
3
Name three things that can be found in between the truck and the building windows in the first video.
Air, the front of the truck, the ground, the columns in front of the building, etc.
The height of a sound wave.
Amplitude
If there are more sound waves, the sound will...
Have a higher pitch
If you move your fingers on a guitar string, you are changing what?
The frequency (pitch) of the sound produced
What is the first part of your ear to vibrate?
Eardrum
This increases the energy of a sound wave the most.
Increasing the amplitude of the sound wave
The number of sound waves that pass a point in a given amount of time.
Frequency
What three things have to happen in order to hear a sound?
1. Vibrations must be created
2. Those vibrations must have a medium to travel through.
3. Something must be able to receive and process those vibrations, like your ears.
If a harpist wants to play a note louder, what do they have to do?
Pull back on a string farther
This is the part of the ear that detects different frequencies of sound.
Basilar membrane
Name three things BETWEEN your ears and my growling stomach.
Air, desks, floor, people, my stomach walls, my abdominal muscles, my blood, etc.
Connects the inner ear to the brain.
Auditory nerve