Question: After playing the FOSS-ulele, David wrote his results in his lab notebook: I'm confused. When I pull down and tighten the string on the FOSS-ulele, then pluck the string, the pitch sounds HIGHER than it did before. But aren't I making the string longer when I pull the string? I thought a longer length produced a LOWER pitch. What's going on here? What is causing the pitch to be higher? Write a note to David to tell him why the pitch gets higher rather than lower.
Reference answer: The string is tighter, so the pitch is higher. The string between the cup and the table is not longer.

Student answer: Because cup is in the middle and it is the lowest.

Student answer: The reason why is because when the string gets tighter The sound gets higher and when The string is loose it make a lower sound.

Student answer: The cup is making the pitch higher.

Student answer: By plucking the string and once you pluck the small string it will be high.

Student answer: The pitch gets higher when the string is shorter and the pitch gets lower when the string is longer.

Student answer: Because when you put the cup down it makes a high pitch.

Student answer: When you pull the string down it makes a higher. And when you pull up it makes a lower pitch.

Student answer: It is tighter and if it is tighter it produces a higher pitch. If he plucked it at the end of the string it would vibrate faster.

Student answer: Because there is more tension.

Student answer: Dear David the more tight it becomes the more higher the pitch. It is not about the length.

Student answer: The tighter the string the higher the pitch. It is not about the length.

Student answer: Because it is like a rubber band hard you pull it the higher pitch it gets.

Student answer: Because the string is tighter.

Student answer: By pulling the string.

Student answer: The pitch has to be softer. When you tighten the string it gets higher and when you loosen it gets lower.

Student answer: It vibrates longer.

Student answer: It has more string to vibrate.

Student answer: What is causing the pitch to be higher is the short string.

Student answer: Because the string is tighter so it makes a higher sound David.

Student answer: The pitch get higher when you put a lot of tension on the string.

Student answer: A low one.

Student answer: The string gets longer.

Student answer: Because he tightened the string too hard.

Student answer: Dear David, the longer string is the Lower pitch.

Student answer: The short string is high and the long one is lower.

Student answer: Well I think That because maybe He has a skinny string.

Student answer: I think it is because David pulled the string to the edge so it makes a higher sound.

Student answer: A long length is a high pitch because it has more room to vibrate.

Student answer: You put too much tension on it.

Student answer: When you tighten something it gets tighter so it makes a higher pitch and when something tighten the string the more it can vibrate the more it can vibrate the higher the pitch.

Student answer: I think you are plucking the string tighter so it is a higher pitch.

Student answer: The pitch is higher because there is more tension.

Student answer: Dear David the pitch gets higher because the string is shorter.

Student answer: David, the cup makes the string tight.

Student answer: When you pull it tighter the faster the string moves so it makes a higher pitch.

Student answer: Pulling The string gives it a higher pitch if you pull it harder it makes a even higher pitch.

Student answer: Because when it is tighter there is less tension. So it makes a higher pitch.

Student answer: Because you are tightening the string and you get higher pitches.

Student answer: Because if you pull down it makes the string tighter and when it is tight it make a higher pitch.

Student answer: When you tighten the string and pluck it it is higher pitch but when you loosen it up it is low pitch.

Student answer: Because it has less room to vibrate.

Student answer: The cup is causing it to be a higher sound.

Student answer: Because when you tighten it more it has less room to vibrate it gets higher.

Student answer: A quarter past left of the cup.

Student answer: Because he might pluck it when it is vibrating.

Student answer: Because the string needs to be short.

Student answer: The tighter it is the higher the pitch is.

Student answer: Maybe the string is skinnier.

Student answer: Because it is so tight.

Student answer: When he pulls the string back farther back it will make a note.

Student answer: By the volume.

Student answer: The more tension the string has the higher the pitch gets.

Student answer: You are not making the string longer.

Student answer: Because it also got tighter which makes it higher.

Student answer: When you tighten the string, it still stays the same. But the vibration can travel faster.

Student answer: When you pulled the string lower, it is making where you pluck the FOSS-ukulele shorter. You are not plucking the string that you pull down.

Student answer: The pitch gets higher because it is being tightened when the string is tightened it makes it also vibrate faster!

Student answer: When you pull the string tighter it is shorter because if it was looser it would go down then up and the sound would get lost on the way.

Student answer: It is, the pitch, is getting higher because you are adding more tension.

Student answer: When you pull the string tighter it makes it louder because it has a shorter way to go so it is faster.

Student answer: Because the tension is increasing when you pull the stick down. And the string has blocked the vibrations right here.

Student answer: The pitch is high when the string is short because when you pluck the short string the sound travels through the string and make a high pitch.

Student answer: David, when you pull down the string you are not making the string lower. When you tighten the string and pluck the string, like you did the vibrations are going to travel faster and as high frequency means high pitch then the sound you are going to hear is going to be high pitched.

Student answer: The short string makes a high sound and the long string makes it a low sound.

Student answer: Because the vibration is faster when it is small and when it is longer the vibration is slow to travel.

Student answer: The pitch is higher because you tightened the string more.

Student answer: David pitch is not happening tension is happening okay so calm down.

Student answer: Tension. David this is why because when you tighten it and pluck it will get higher just the way it is.

Student answer: David this is why because you do not listen to your teacher. If the string is long, the pitch will be high.

Student answer: Because when you pull it tighter to the short side the pitch get higher.

Student answer: Because the tension is tighter.

Student answer: It because the tension.

Student answer: This is why the pitch is getting louder because you made it tighter and longer.

Student answer: Because it is a long string.

Student answer: Because you are not pull the string.

Student answer: The pitch is getting high because you pull the string harder.

Student answer: The pitch gets higher when you pluck it hard.

Student answer: Dear David the string length does not change it travels faster because it is to tight to stay in place.

Student answer: Dear David the pitch gets higher because you have to pluck the sound source.

Student answer: The pitch gets higher because of the tension. When you pull harder on the string, it gets higher. Tension is how tight something is.

Student answer: Dear David the pitch is getting higher because you are making it shorter that is why.

Student answer: Dear David, it sounds higher because you tighten it when you pull.

Student answer: Dear David, The pitch gets higher because when the string is tight, it makes higher.

Student answer: Dear David, the pitch gets higher because you pull it tighter so it makes a higher pitch.

Student answer: Dear David The pitch gets higher because the tighter you pull tighter it get.

Student answer: Because it is tighter so it does not have much room to vibrate.

Student answer: The string cause the pitch to be higher.

Student answer: The low string would make a higher sound and the high string would make a low sound.

Student answer: The small pitch is higher because the small one is causing the sound.

Student answer: Because it cause vibration.

Student answer: Because you pulled the string harder.

Student answer: Because it probably not getting pulled high enough.

Student answer: So David you can not figure out what if you tightening one string and then loose it and pluck.

Student answer: The pitch is higher because you are pulling the string harder so it is higher but if you pull the string looser you will get a lower sound.

Student answer: The string get lower because the string is tight.

Student answer: It could be that he plucked harder than before.

Student answer: Something small goes faster and lower but something big goes slower and higher.

Student answer: Maybe when you pull it tighter and the string gets a little bit loose so it made a higher sound.

Student answer: It gets higher because when you tighten it up, the tension gets high up.

Student answer: Well you are actually making the string shorter because see the vibration is stopping at the table side. Look. But you were right on the pitch.

Student answer: Dear David, it has a higher pitch because the vibrations.

Student answer: It makes a high pitch because the string is tight so it makes a higher pitch if the long string was loose it would make a low pitch.

Student answer: Because it is more tight and short and then it is high.

Student answer: It make a high pitch.

Student answer: It matters where you pluck it not how long the string is.