Question

class 9th extra questions of physics sound chapter

Answer 1

1. Write three difference between transverse waves and longitundal waves ?

2.What is a sound board ? Explain the working of a sound board with example.

3.How does wave transfer ?

4.What are mechanical waves ?

5. What is one complete oscillation?

6.On what factor does the pitch of a sound depend ?

7. What is intensity of sound ?

8. What is relation between time period and frequency ?

9. Name two animals that communicate using infrasound ?

10.Earthquake produce which type of sound before the main shock wave begin ?

Hope it helps you