Sound – Online Tutorial
http://www.ndt-ed.org/EducationResources/HighSchool/Sound/hs_sound_index.htm
Instructions: Read sections 1-7 and answer the following questions.
Introduction
Vibration
The Speed of Sound in Air
The Speed of Sound in Other Materials
Temperature and Speed of Sound
The Human Ear
The Components of Sound
Questions:
1.
What is sound and how does it travel?
2.
What do sound waves consist of?
3.
What do sound waves look like?
4.
What is the speed of sound through air at sea level?
5.
What is the sound barrier?
6.
Why do we see lightning before thunder?
7.
What happens to the speed of sound when you change the material through which
the sound travels?
8.
Through which material does sound move faster? Why do you think it is faster?
9.
What happens to the speed of sound when the temperature changes?
10.
Does sound travel faster or slower as temperature increases?
11.
What are the three main sections of the ear?
12.
Why are sounds different?
13.
What is the relationship between amplitude and intensity?
14.
What is intensity measured in?
15.
What is the relationship between frequency and pitch?