Sound

Ok..  today I am going to tell you about “Sound”. Let’s start, first of all what is sound? Well sound is a vibration that affects the molecules-molecules in the air.
Now then let’s talk about how does sound travel. Sound travel from one medium to another using the air molecules.
Now, I am going to tell you about sound wave. What is sound wave? Sound wave are often simplified to a description in terms of sinusoidal plane wave. It travels very fast but its speed is still slower than a lightning.
Next is how do we hear sound and how does it affect hearing? Sound travels in the air which will cause the ear drum to vibrate. The higher the frequency of the sound the faster the ear drum will vibrate and the lower the frequency of the sound the slower the ear drum will vibrate.  We should always remember that is the frequency of the sound is to high it may damage the ear and cause deafness.
How does sound travels to the inner ear? As sound travel through the air to the ear. It will then cause the ear drum to vibrate. The vibration then will be transfer to a set of 3 tiny bones. This will transmit the sound energy to the oval window. You can say that the oval window is a membrane-covered opening which will leads the sound from the middle ear to the inner ear.

Now I am going to tell you about my experiment at school.
In this experiment i tried to make a telephone out of a cup and a string. I learnt that we could only hear each other sound when we straighten the string and nothing should be blocking the string which serve a the path of the sound to travel.

Mine is the orange one while the purple is my partner’s (Farren)
This is for now!