Guitars

Have you ever wondered what parts of the guitar are there? Or how it makes sound? Well, you are in good luck! Because I’m going to tell you about those things. Did I mention, that there are all types of guitars?

When playing a guitar you will notice six strings. The six strings are stuck to the bridge of the guitar. Those are the parts that you strum. Every guitar needs a fretboard! A fretboard is the long thing stuck to the board of the guitar. A sound hole supports the guitar by  making the sound louder and clear.

How can I hear the sound of a guitar? When strumming a guitar the string vibrates which makes sound waves. The waves go through the hole of the guitar and bounces of the wooden part  of the guitar. Which causes the sound waves to go into our ear.

There are a variety of songs you can play on the guitar! But sometimes it takes practice. Did you know that guitars have 2341 playable chords? Thats surely a lot!

In acoustic songs one of the main instruments are the guitar. That’s why guitars are one of the greatest instruments invented! I would surely recommend this instrument to everyone who has not yet discovered the guitar! I’m sure that the guitar is the most inspiring instruments.

science experiment

Science experiment:       

Question: What will happen to the sound if I change the shape of a piece of paper? (e.g. from a flat shape to a funnel shape)

Links to research about Sound:

http://www.thetech.org/exhibits/online/robotzoo/guide/bats_and_echoes.html

http://www.sciencekids.co.nz/sciencefacts/sound.html

http://www.softschools.com/facts/energy/sound_energy_facts/401/

#

Hypothesis: (What do you think will happen?) e.g. I think that…. You will hear a deep kind of echo!

Materials needed: Paper, tape and cotton ball/tissues

Experiment (procedure):

e.g. Step 1 - First hold a flat piece of paper against your ear. Block your other ear with your hand. Get your partner to speak to you. What is the sound like? Can you hear clearly?

Step 2 - Next, roll the piece of paper into a funnel shape. Put the funnel against your ear. Face the funnel towards your partner and listen to them speak. What does it sound like? Can you hear clearly?

Step 3 -  After that, put a tissue/cotton ball at the end of the cone. And put the funnel against your ear. Tell your friend to speak and try figure out what it sounds like.

Step 4 -  Try facing the other way and tell your friend to speak again. Block one side of your ear. Can you hear her/his voice clearly?

Step 5 -  When you are done with that face it directly away from them? will you notice anything strange?

Data (What happened?)

	Shape/object/materials	Results:
1	flat piece of paper	The sound was really clear, but it had made no difference
2	funnel facing to the front	I can really pick up sound from the persons voice
3	funnel facing to the side	i can only pick up noises from others except the v
4	cotton ball blocking funnel	I can really hear her more clearly
5	rolled up piece of paper (facing to the front)	I can pick up her sound a little bit
6	rolled up piece of paper (facing to the side)	no difference

Observations:

I rolled up the piece of paper and taped it together . I asked my partner ‘Iron’ to speak directly into the funnel. I could only pick up her voice very clearly. I then faced to the right, I then could only pick up voices of the class but not Iron.

Experiment 2: I got a tissue and placed it at the end of the cone . I told her to speak, but I could still hear her voice. Her voice had more power than the tissue that was placed inside the funnel.

Conclusion:

During all the hassle, doing the experiment I found my hypothesis . . . a bit wrong. I expected a ‘deep’ echo sound. In reality, I could just pick my partners voice clearly and properly. No pitch change!