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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?
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 ?
give 4 advantages and disadvantages of loudspeakers?
a spoon can sound like a bell. No, this is not riddle. it's science. prove it?
What is the difference between Noise and Music?
some steps to reduce noise pollution?
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.
Explain the principle on which Jaltarang works.
How sound is produced by dholak?
5 differences between loudness and pitch
Why the voice of men, women and children are different?
what is the name given to sound produced by irregular vibrations?
write a short note on noise pollution and i need it fast please
What is the difference between Vibration and Oscillation ?
How can you say that sound is a form of energy? Explain with examples.
How do loudness and pitch of sound depend on amplitude and frequency respectively?
Which of the following voices is likely to have maximum frequency?
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
The amplitude of the sound wave decides on its _________.
What are longitudinal and transverse wave? and is Sound a longitudinal wave?
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
a spoon can sound like a bell prove it
What is amplitude,frequency and time period?
what is amptitude
How does a jaltarang work? I searched on the net and it said that the shorter the air coloumn above the water, the faster it vibrates, thus producing a higher pitch. Why is this so? I didn't understand at all and I really need help.
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.
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?
sound is a vibration that propagates as a typically audible mechanical wave of pressure and displacement, through a medium such as air or water. In physiology and psychology, sound is the reception of such waves and their perception by the brain.
is this defanation for the sound
please tell the correct defination
name any 7 musical instruments and their vibrating parts
ARE FREQUENCY AND PITCH DIRECTLY PROPORTIONAL ? GIVE REASONS
what is the SI unit of vibration ?
compare the transmission of sound in solids , liquids and gases?
give two uses of ultrasonic vibrations in industry .
Loudness of sound is proportional to the square of the amplitude of the vibration produced...justify,
any 5 difference between audible and inaudible sound plz do it quick.
what is 1 hertz
What is audible and inaudible sounds
an explosion occurs on the moon.will it be
b)heard on the earth instantly or after sometime?
how do whales and dolphins communicate under water?
In the game of hide and seek how the blind folded person guess ho is the nearest person to him
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.
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
What are ultrasonic sounds? Write some applications of ultrasonic waves.
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 MHz
what is sound ?
define sound .
why do we not hear the supersonic jets when they approach us, but hear a sudden boom when they have gone away?
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?
What is a transverse and longtudinal wave? Can you mention any 5 differences between them?
What r vocal cords and what is their function and this time don't give the website give answer by typing.
time taken to complete one oscillation is called
the loudness of a lions roar is much greater than a birds chirp.what causes the difference in loudness?????
pls answer fast
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