SOUND Fill in the blanks 1. Time taken by an object to complete one oscillation is called _______________. 2. Loudness is determined by the _______________________of vibration. 3. The unit of frequency is ________________________. 4. Unwanted sound is called ______________________. 5. Shrillness of a sound is determined by the __________________________. 6. The number of oscillation in one second is called ____________________. 7. The hearing range of human ear is _____________ 8. Sound cannot travel in __________________. 9. Sound can travel in _____________________. 10. The pitch of sound depends on __________________. Choose the correct answer: 1. Ear drum is a part of [ sound producing organ / hearing organ] 2. The voice box is also called [Larynx / mouth] 3. Large amplitude of sound vibrations will produce [Loud sound / slow sound] 4. Voice of which of following is likely to have minimum frequency [Baby girl / a woman] 5. The unit of loudness is (decibel / Hertz) Answer the following: 1. Name the sound producing organ in human. 2. How does sound travel from one place to another? 3. How is sound produced? 4. What do you mean by musical sound? 5. How does the amplitude affect the loudness of vibration? 6. What is noise pollution? 7. What is outer part of ear is called? 8. What are the two main properties of a sound? 9. Which help us to recognize sound? 10. On which factors loudness of sound depend? 11. What is infrasonic vibration? What is their range in Hertz?
Answers
1 = amplitude
2 = sound
3= heartz
4 = frequency
5 = noise pollution
6= amplitude
7 = 20hz to 20000hz
8 = vaccum
9 = any medium
10 = amplitude
Explanation:
choose the correct answer :
1 = hearing organ
2 = larynx
3 = slow sound
4 = baby girl
5 = decibel
Answer the following:-
1 . mouth
2. with medium
3. by larynx/voicebox
4. can't say
5. by the oscilatory vibrations
6. unwanted sounds are noise pollution
7. pinna
8. i) - its produce by vibration
ii) - it travels in a medium
9 . ear
10. can't say
11. the range between the 20heartz and 20000hz. are called infrasonic waves/sound.
their ranges are between (20 to 20000 heartz
please mark this answer as a brainliest answer,......
Answer:
SOUND Fill in the blanks 1. Time taken by an object to complete one oscillation is called _______________. 2. Loudness is determined by the _______________________of vibration. 3. The unit of frequency is ________________________. 4. Unwanted sound is called ______________________. 5. Shrillness of a sound is determined by the __________________________.
Explanation: