- Listener
SAVE A WAVE RIDE A SURFER
Age: 18
Location: United States
Joined On: Dec 26, 2006
I DANCE
Wichita Falls, TX
KinkyKalen
United States
Ryan Riot™ astronaunt.
United States
emmalinee
United States
and ii dont know what billboards are lol5. Explain how we can hear the sound from a guitar.
A sound wave is produced by a vibrating object. As a guitar string vibrates, it sets surrounding air molecules into vibrational motion. The frequency at which these air molecules vibrate is equal to the frequency of vibration of the guitar string. The back and forth vibrations of the surrounding air molecules creates a pressure wave which travels outward from its source.
6. Explain what is meant by a boundary and boundary behavior.
The behavior of a wave (or pulse) upon reaching the end of a medium is referred to as boundary behavior.
When one medium ends, another medium begins; the interface of the two media is referred to as the boundary and the behavior of a wave at that boundary is described as its boundary behavior.
7. Compare the behavior of the wave when:
A. It is fixed at one end
Because the right end of the rope is attached to a pole (which is attached to a lab bench) (which is attached to the floor which is attached to the building which is attached to the Earth), the last particle of the rope will be unable to move when a disturbance reaches it. This end of the rope is referred to as a fixed end.
B. When it is free at one end.
Because the right end of the rope is no longer secured to the pole, the last particle of the rope will be able to move when a disturbance reaches it. This end of the rope is referred to as a free end.
8.
A. It is faster when it is free at one end.
B. Wavelength is fairly similiar
C. Frequency is greater when it is fixed at one end.
9. Describe the formation of a standing wave and define a node and an antinode.
The result of the interference of the two waves above is a new wave pattern known as a standing wave pattern. Standing waves are produced whenever two waves of identical frequency interfere with one another while traveling opposite directions along the same medium. Standing wave patterns are characterized by certain fixed points along the medium which undergo no displacement. These points of no displacement are called nodes (nodes can be remembered as points of no desplacement).
Antinodes are points along the medium which oscillate back and forth between a large positive displacement and a large negative displacement
10. Define a harmonic:
JackI\'mInaBox
Hey my names Jon! i'm in an acoustic/pop band called
Breed's Hill. We came together over the summer and are
trying to get a show with Owl City this spring. We need
a fan base so please go listen to our new Ep called
"Time" and see if ya like it. I think ya will. If ya
do....Please Fan Us!!!! Thanx so much
www.purevolume.com/breedshill
posted Oct 21
martin
hi:) what up? I am a member of the group called "At
breakfast" pop punk rock
http://www.purevolume.com/atbreakfast
thanks , good luck
posted Jun 21
Fall Like Paper Dolls
:) so r u in a band or do u just play guitar for the
hell of it?
posted Oct 17
Fall Like Paper Dolls
haha, i doubt that's all there is to ur life story. but
i love ur band favorites :)
posted Oct 11
Fall Like Paper Dolls
hey i love ur hair - random but true ^_~
posted Sep 30
Allie
Awesomee x]
posted Sep 16
Allie
Ohh that's awesomeee. I've been thinking of majoring in
some kind of journalism too lol. Just kuz I love to
writee. But it's more like creative writing, so idk
really haha.
posted Sep 12
Allie
Hah that's awesomee. I can't wait for college either,
but I'm only a sophomore :/ Lol where do you wanna go
to college?
posted Sep 11