1.What is noise pollution and how is it caused and write its four harmful effects
2.What is frequency , amplitude.
3.Draw waves with same frequency and different amplitude, and with same amplitude and different frequency
4.A string osicillates 60 times in 30 seconds find its time period
5.Why do women have high pitch voice
6.What is difference between noise and music
7.What is the qulity of the sound
8.On what factors loudness and the pitch of the sound depends
9.What is ultrasonic and infrasonic sounds
10.Why can't we hear the screams of the bat
11.Trees should be plated to reduce noise pollution.give reason
12.If the amplitude is trippled how many times will the loudness increase
13.How is sound wave different from the light wave
14.How is sound produced, and how is the sound produced by the humans
15.give a detail account on the working of the ear
16.The time period of the sound wave is given as 0.5 second what will be the frequency
17.Sound can not travel through vaccum, prove it with an experiment
18.Will sound travel faster through solid or liquid.Give an example to illustrate this
19.Ramesh measured the time gap between lightning and thunder and found that it was a 3 seconds assuming light covers the distance instantly what is the distance of the clouds from ramesh.Why did ramesh hear the sound 3 seconds late
20.List three measures to control noise pollution
21.Name three types of musical instruments and how is the sound produced by each of them
2.What is frequency , amplitude.
3.Draw waves with same frequency and different amplitude, and with same amplitude and different frequency
4.A string osicillates 60 times in 30 seconds find its time period
5.Why do women have high pitch voice
6.What is difference between noise and music
7.What is the qulity of the sound
8.On what factors loudness and the pitch of the sound depends
9.What is ultrasonic and infrasonic sounds
10.Why can't we hear the screams of the bat
11.Trees should be plated to reduce noise pollution.give reason
12.If the amplitude is trippled how many times will the loudness increase
13.How is sound wave different from the light wave
14.How is sound produced, and how is the sound produced by the humans
15.give a detail account on the working of the ear
16.The time period of the sound wave is given as 0.5 second what will be the frequency
17.Sound can not travel through vaccum, prove it with an experiment
18.Will sound travel faster through solid or liquid.Give an example to illustrate this
19.Ramesh measured the time gap between lightning and thunder and found that it was a 3 seconds assuming light covers the distance instantly what is the distance of the clouds from ramesh.Why did ramesh hear the sound 3 seconds late
20.List three measures to control noise pollution
21.Name three types of musical instruments and how is the sound produced by each of them
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