Answer the following questions
1. What are the basic properties of sound? How will you describe each of these properties?
2. Humans can hear only a certain range of sound. What do you think are the sounds that humans cannot hear?
3. Why do the voices of children, men, and women differ from one another?
4. Why does the speed of sound vary in different materials?
5.Why are loud and discordant tones irritating to the ear?