name the types of waves and 2 examples associated with a) compression and rare fraction b)crust and trough
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a - Longitudinal Wave
b -Transverse wave
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Transverse Waves
Image of transverse wave parameters
Transverse Wave Parameters
When you picture a wave in your mind, you probably envision a transverse wave. It kind of looks like a squiggly line with peaks and valleys, which we call crests and troughs. In a transverse wave, the particles of the medium move perpendicular to the wave's direction of travel.
Imagine a line of people all holding hands. If the first person on the left jumped up and down, they would pull on the hand of the next person in line, causing them to jump up and down too. This would continue on down the line to the right until everyone had jumped up and down. The people are like the particles in a medium. They move up and down while the wave moves from left to right. This type of wave gets its name from the fact that the particles move in a direction transverse to the direction of the wave.
Transverse waves can be mechanical or electromagnetic in nature. A mechanical wave is a disturbance that travels through a medium, such as a vibrating string. In contrast, an electromagnetic wave, such as light or radio waves, doesn't need a medium and can travel through empty space. While all electromagnetic waves are transverse, mechanical waves can be transverse or longitudinal, which brings us to our next type of wave.
Longitudinal Waves
In a longitudinal wave, the particles of the medium move parallel to the wave's direction of travel. Let's go back to our line of people to see what this would look like.
In this scenario, instead of the person on the left jumping up and down, they bump into the person next to them. Now, this next person being knocked off balance will bump into the person beside them, and so on down the line. As each person regains their balance, they return back to the place where they were standing before being so rudely disturbed.
As we can see, the wave traveled from left to right again, but this time the motion of the people was also left and right. To help us remember this relationship, we can think about how the motion of the particles is along the longitudinal wave.
While transverse waves have crests and troughs, longitudinal waves have compressions and rarefactions.
A compression is where the density of the wave medium is highest. In our line of people, this was where folks were actually bumping into each other.
A rarefaction is where the density of the wave medium is lowest. In our line, this occurred just after the compression, where the people were spread out, trying to regain their balance.
Just like the wavelength of a transverse wave is the distance from crest to crest or trough to trough, the wavelength of a longitudinal wave is the distance between compressions or between rarefactions.
Image of transverse wave parameters
Transverse Wave Parameters
When you picture a wave in your mind, you probably envision a transverse wave. It kind of looks like a squiggly line with peaks and valleys, which we call crests and troughs. In a transverse wave, the particles of the medium move perpendicular to the wave's direction of travel.
Imagine a line of people all holding hands. If the first person on the left jumped up and down, they would pull on the hand of the next person in line, causing them to jump up and down too. This would continue on down the line to the right until everyone had jumped up and down. The people are like the particles in a medium. They move up and down while the wave moves from left to right. This type of wave gets its name from the fact that the particles move in a direction transverse to the direction of the wave.
Transverse waves can be mechanical or electromagnetic in nature. A mechanical wave is a disturbance that travels through a medium, such as a vibrating string. In contrast, an electromagnetic wave, such as light or radio waves, doesn't need a medium and can travel through empty space. While all electromagnetic waves are transverse, mechanical waves can be transverse or longitudinal, which brings us to our next type of wave.
Longitudinal Waves
In a longitudinal wave, the particles of the medium move parallel to the wave's direction of travel. Let's go back to our line of people to see what this would look like.
In this scenario, instead of the person on the left jumping up and down, they bump into the person next to them. Now, this next person being knocked off balance will bump into the person beside them, and so on down the line. As each person regains their balance, they return back to the place where they were standing before being so rudely disturbed.
As we can see, the wave traveled from left to right again, but this time the motion of the people was also left and right. To help us remember this relationship, we can think about how the motion of the particles is along the longitudinal wave.
While transverse waves have crests and troughs, longitudinal waves have compressions and rarefactions.
A compression is where the density of the wave medium is highest. In our line of people, this was where folks were actually bumping into each other.
A rarefaction is where the density of the wave medium is lowest. In our line, this occurred just after the compression, where the people were spread out, trying to regain their balance.
Just like the wavelength of a transverse wave is the distance from crest to crest or trough to trough, the wavelength of a longitudinal wave is the distance between compressions or between rarefactions.
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