Sound is a noise that can be heard when it travels to a person's ear. Property is a characteristic or attribute that something owns.
One property of sound is that as sound travels it dissipated (gets weaker and weaker). This was proven because Mr Wong clapped on one side of the classroom and the meter on the other side recorded a quiter noise than the one closer to Mr Wong.
Another property of sound is that sound travels the same in every direction. This was also proven to be true because the meter recorded the same decibels from behind, in front, left side, right side and above.
The last property observed of sound is that sound can travel corners. This is because Mr Wong clapped in another area of the classroom and the meter was still able record the sound.
LI: To observe the properties of sound.
No comments:
Post a Comment
Note: only a member of this blog may post a comment.