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1 hz = how many decibels?
what is the relationship between frequency and time period
which characteristic of a vibrating body determines the-
(b)Pitch of the sound produced by it?
give 15 musical instruments with their names and their vibrating parts?
give 4 advantages and disadvantages of loudspeakers?
What is the difference between Noise and Music?
Which of the following voices is likely to have maximum frequency?
some steps to reduce noise pollution?
a spoon can sound like a bell. No, this is not riddle. it's science. prove it?
Explain the principle on which Jaltarang works.
5 differences between loudness and pitch
Why the voice of men, women and children are different?
write a short note on noise pollution and i need it fast please
What is the difference between Vibration and Oscillation ?
The quality of two sounds with the same fundamental frequency differs because of the number and relative loudness of the.......?
How do loudness and pitch of sound depend on amplitude and frequency respectively?
1. In which medium speed of sound is maximum an din which minimum ?
2. A pendulum makes 16 oscillations in 2 seconds . What is the frequency of the pendulum ?
A man stationed between two parallel cliffs fires a gun . He hears the first echo after 1.5s and the next after 2.5s. What is the distance between the cliffs and when does he hear the third echo? Take the speed of sound in air as 340m/s .
what are the vibrating part of following objects
a.harmonium b.tabla c.flute d. guitar e.ghatam f.manjira g.noot h.kartal i.sitar j.striking a pan
What are longitudinal and transverse wave? and is Sound a longitudinal wave?
a spoon can sound like a bell prove it
Identify the part which vibrates to produce sound in the following
(a) Dholak (b) Sitar (c) Flute
What is amplitude,frequency and time period?
what is amptitude
which one of the following can hear the infrasound?
Which of the following voices is likely to have minimum frequency.
(a) A man (b) A baby girl (c) A baby boy (d) A woman
identify the sources of noise pollution in your locality. Discuss with your parents, friends and neighbours. Suggest how to control noise pollution. Prepare a brief report and present it in the class.
1 give reasons
A) Cinema halls and auditoriums are carpeted and their walls are coated with rough material
b) Echoes are not formed in our classrooms
suppose you are going in a jet plane,and one of the windows breaks due to an accident.what problems do you think you will face?
any 5 difference between audible and inaudible sound plz do it quick.
name any 7 musical instruments and their vibrating parts
what is the SI unit of vibration ?
wat is d aim , colclusion n observation of jaltarang ??
compare the transmission of sound in solids , liquids and gases?
give two uses of ultrasonic vibrations in industry .
How can you say that sound is a form of energy? Explain with examples.
1. How is the frequency of a vibrating obect ? How is it related to shrillness of sound ?
2. Ramesh measured the time gap between lightning and thunder, and found that it was 3 seconds. Assuming light covers the distance instantly, what is the distance of the clouds from Ramesh.
What is audible and inaudible sounds
an explosion occurs on the moon.will it be
b)heard on the earth instantly or after sometime?
What is the relationship between the loudness and the amplitude of the vibrating body?
In the game of hide and seek how the blind folded person guess ho is the nearest person to him
Two seperate taps on a pillar of the Vitthala temple at Hampi, Karnataka, produces sounds having frequency 168Hz and 112Hz. What kind of asound will it be? Why?
If we want to hear a train approaching from far away , why it is more convenient to put th ear to the track ?
What are ultrasonic sounds? Write some applications of ultrasonic waves.
how do human beings produce sound
what are two important properties of sound
Write an activity to prove that sound needs a medium for propogation .
I searched it on the study material but realistic activities are needed inculing
2) Materials Required
4) Observation / Conclusion
Thanks in adance and don't forget to wish me 'All The Best' for the exam . Tomorrow it will take place .
what are disadvantages of sound pollution
How to make ektara at home
A dog barks in a park and hear its echo after 0.5 seconds. The sound of its bark got reflected by a nearby building. The sound of speed in air is 346 m/s. The distance between the dog and the building isA) 86.5 mB) 80.6 mC) 75 mD) 8.65 m
what is sound ?
define sound .
if the thickness of vibrating string is increased,its pitch-------------
difference between audible and inaudible sound
explain how noise pollution is harmful to human beings?
what is noise pollution
what is the difference between time period and frequency
Sonic vibrations were sent down from a ship return after 2 seconds. What is the depth of the sea, if the speed of sound in water is 1.5 km s-1 ?
If the amplitude is increased by 3 times , by how much does the loudness increase?
The frequencies 391.99Hz, 783.98Hz and 1175.97Hz are of a musical note, WHY?
describe an experiment to show that sound can travel through liquids.
time taken to complete one oscillation is called
State true or false
1.Sound can be produced by beating an object irrespective of whether there are vibrations or not.
2.The sound of a tabala normally has a lower pitch than the sound of a violin.
3.A short flute will produce sound of lower pitch than a long flute.
The audible range of a human ear is 20Hz to 20kHz . Convert this into corresponding wavelength range . The speed of the sound at ordinary temperature is 340m/s.
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