Chapter 13 - Sound - 3

Physics Class 10
1. Match the column.................................ordinary conversation




Physics Class 10
2. Match the column.................................rustle of leaves




Physics Class 10
3. Match the column.................................average whisper




Physics Class 10
4. Match the column.................................heavy street traffic




Physics Class 10
5. Match the column.................................intensity




Physics Class 10
6. Match the column.................................intensity level




Physics Class 10
7. Match the column.................................speed of sound




Physics Class 10
8. Match the column.................................wavelength




Physics Class 10
9. Match the column.................................frequency




Physics Class 10
10. Vibrating bodies produce_______________.

Physics Class 10
11. Sound waves are _________waves.


Physics Class 10
12. A material ______ is necessary for the propagation of sound waves.


Physics Class 10
13. The places where molecules of the medium are very close to each other are called _________.


Physics Class 10
14. The snail like part in the structure of inner ear is known as __________.


Physics Class 10
15. Speed of sound is __________ in solids as compared to that in liquids.


Physics Class 10
16. Greater the distance from vibrating body, _________ is the loudness.


Physics Class 10
17. Loudness is directly proportional to __________ of intensity.


Physics Class 10
18. Intensity level of fainstest audible sound is ______.


Physics Class 10
19. S-I unit of intensity of sound is ___________.


Physics Class 10
20. Intensity level of ordinary conversation is _________.


Physics Class 10
21. The places where molecules of the medium are very far from each other are called _________.


Physics Class 10
22. The voice of ladies and children is shrill and of high _______.


Physics Class 10
23. The sounds which have pleasing effect on our ears are called ___________ sound.


Physics Class 10
24. Bacteria in liquids can be destroged using high intensity _____________ waves.


Physics Class 10
25. If area of vibrating body is larger than the sound produced is __________.


Physics Class 10
26. Old people can not hear sounds even above ________ Hz frequency.


Physics Class 10
27. In laboratory, a U shaped device used for producing a particular sound is known as _______.


Physics Class 10
28. Sound which has a jarring effect on our ears is called _______.


Physics Class 10
29. The depth of an ocean is measured by using ____________.


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