Music to My Ears
This is the source of all sound.
What is a vibration?
When a wave moves from one medium to another, it undergoes wave refraction, resulting in this.
What is the bending of the wave?
What is Herz?
The US National Oceanographic and Atmospheric Administration just announced that the level of this gas in the atmosphere is the highest its been in 3.6 million years.
What is carbon dioxide?
This is one example of an aerophone.
What is a flute, whistle, trumpet...etc?
A sound with a high frequency is said to also have a high one of these.
What is pitch?
An echo is an example of this property of waves.
What is reflection?
The distance from the line of rest to the top of a wave crest is called this.
What is the amplitude?
When your teacher announces that the potentially deadly chemical dihydrogen monoxide was found in the school's water supply, you don't worry because of this.
What is the fact that dihydrogen monoxide is another name for water?
Guitars, violins, banjos and berimbaus are all examples of this type of instrument.
What is a chordophone?
The amplitude of a sound is also known as this.
What is loudness?
This wave travels at approximately 345 m/s (at sea level and 20°C).
What is sound?
The distance between one crest of a wave to the next crest of the same wave is this.
What is the wavelength?
This musical artist has just released a new version of her 2008 album "Fearless", the first of several albums she will re-record in order to own all the rights to her own music.
The source of vibration in a membranophone is this.
What is a thin vibrating membrane or skin (as in a drum)?
This is the term for the unique sound of a specific instrument. It is what allows us to tell the difference between a trombone and a banjo.
What is timbre (or tone color)?
When the crest of one wave meets the trough of another wave, this type of interference results.
What is destructive interference?
A wave with a wavelength of 10 meters that has a frequency of 10 Hz has this velocity (include units).
What is 100 m/s?
In a debate or discussion, when someone attacks the speaker rather than addressing the merits of the speaker's argument, we say that they are committing this logical fallacy.
What is ad hominem?
The Daily Double! A vibrating string doesn't make much sound, yet a banjo or a guitar is quite loud because of this.
What is that the vibration of the string causes the large surface area of the body to vibrate, moving more air molecules and creating a louder sound.
The Doppler Effect is the apparent change in pitch or frequency of a sound due to this.
While the waves in the ocean are transverse waves, sound is this type of wave.
What is a longitudinal wave?
In sound waves, the crests and troughs of the wave are actually areas of high and low pressure, called this.
The compressions and rarefactions.
A millimeter is approximately the thickness of a dime. This many millimeters are in a kilometer.
What is a million?
These are two of the ways to change the pitch of a string on a stringed instrument.
What is change the tension, thickness, or length of the string?