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1 hz = how many decibels?
what is the relationship between frequency and time period
give 15 musical instruments with their names and their vibrating parts?
how do whales and dolphins communicate under water?
give 4 advantages and disadvantages of loudspeakers?
what is the name given to sound produced by irregular vibrations?
What is the difference between Noise and Music?
Explain the principle on which Jaltarang works.
some steps to reduce noise pollution?
The ultrasonic waves take 4 seconds to travel from the ship to the bottom of the sea and back. The depth of sea is (speed of sound in mater is 1500 m/s ) .................
a spoon can sound like a bell. No, this is not riddle. it's science. prove it?
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.
5 differences between loudness and pitch
if the thickness of vibrating string is increased,its 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 ?
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 ?
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?
name any 7 musical instruments and their vibrating parts
a spoon can sound like a bell prove it
Which of the following voices is likely to have maximum frequency?
What is amplitude,frequency and time period?
Loudness of sound is proportional to the square of the amplitude of the vibration produced...justify,
what is amptitude
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
which characteristic of a vibrating body determines the-
(b)Pitch of the sound produced by it?
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.
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?
What is the relationship between the loudness and the amplitude of the vibrating body?
what is the SI unit of vibration ?
Spectators watching a game of cricket hear the sound, a spilt of second after a batsman make stroke.
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.
Which parts of jal tarang vibrates
any 5 difference between audible and inaudible sound plz do it quick.
The amplitude of the sound wave decides on its _________.
What is audible and inaudible sounds
an explosion occurs on the moon.will it be
b)heard on the earth instantly or after sometime?
a voilin is always stored with its string loosened to present them from snapping. when it is being tuned the strings are tightened gradually. what effect does this have on the pitch of the note produced.
In the game of hide and seek how the blind folded person guess ho is the nearest person to him
If we want to hear a train approaching from far away , why it is more convenient to put th ear to the track ?
how do human beings produce sound
A car driver took a total of 2 hours to make a journey of 75 km. He had a coffee break of half an hour and spent a quarter of an hour stationery in a traffic jam. What was his average speed during the journey ?
What are ultrasonic sounds? Write some applications of ultrasonic waves.
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 are two important properties of sound
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
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
what is sound ?
define sound .
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
describe an experiment to show that sound can travel through liquids.
If the amplitude is increased by 3 times , by how much does the loudness increase?
how is sound produced in mridangam
time taken to complete one oscillation is called
How sound is produced by dholak?
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