This is what vibrates inside your ear when sound reaches it.
What is the eardrum?
This word describes how loud or quiet a sound is
What is volume?
Sound is created by this back and forth motion.
What is vibration?
Sound travels in waves because these bump into one another in the air.
What are particles?
This word is used to describe how high or low a sound is.
What is pitch?
You must have this to have sound, or you won't hear anything.
What is air?
These vibrate when we speak.
What are vocal chords?
This word describes what we call a sound that has bounced off of a hard surface, and travels back to us.
What is an echo?
The top of a wave.
What is crest?
A signal of the eardrum vibrating is sent to the brain through this.
What is a nerve?
This is what happens to a ringing alarm clock if there is nothing around it, including air.
What is not ring or make a sound?
This is what we call a chain of vibrating molecules.
What are sound waves?
Sound travels faster through this form of matter.
What are solids?
The bottom of a wave.
What is trough?
If you have an earache, you might place this soft, fluffy material in your ear to absorb the sound waves.
What is cotton?
To make a louder sound, this is needed.
What is energy?
This is what vibrates in order to create music from a guitar or piano.
What are strings?
This affects the speed of sound.
What is temperature?
The name of the person who invented a code with dots and dashes.
What is Morse?
This is the smallest bone in your body.
What is stirrup?
The wheels on a train screech when stopping. This causes that loud noise.
What is friction, or the wheels rubbing the track?
One of these must happen in order for an object to vibrate.
What is struck, dropped, or plucked?
Sonic boom travels about this fast.
What is 800 miles per hour?
The name of the person who created a sonic boom flying a jet.
Who is Chuck Yeager?