1.What is loudness and pitch?
2. What are vibrations?
3. What is amplitude and frequency of vibrations?
4. Unit of frequency?
5. Can sound travels through vacuum?
6. What is sound wave?
7. What is a microphone?
8. What is meant by pitch?
9. State differences between high pitched sound and low pitched sound.
10. List them in correct order to show how the vibrations of sound wave eventually reach the brain ?
11.What is the highest frequency of sound we can hear?
12. What is the lowest frequency?
13. Explain parts of an ear.
14. Range of hearing?
15. What is ultra sound?
16. What is noise?
17. Speed of sound in water?
18. Factors affecting speed of sound?
19. What type of wave is sound?
20. Why do sound waves travel fastest in solids?
21. Which is the medium through which sound waves move the slowest.
22. Sound waves are called mechanical waves.why?
23. Define speed of sound
24. What is super sonic sound?
25. Sources of sound?