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1 hz = how many decibels?
what is the relationship between frequency and time period
a spoon can sound like a bell. No, this is not riddle. it's science. prove it?
give 15 musical instruments with their names and their vibrating parts?
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.
give 4 advantages and disadvantages of loudspeakers?
What is the difference between Noise and Music?
some steps to reduce noise pollution?
Explain the principle on which Jaltarang works.
How do loudness and pitch of sound depend on amplitude and frequency respectively?
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 ?
an explosion occurs on the moon.will it be
b)heard on the earth instantly or after sometime?
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
How can you take care of your ears?
What are longitudinal and transverse wave? and is Sound a longitudinal wave?
a spoon can sound like a bell prove it
What is amplitude,frequency and time period?
what is amptitude
Que - the sound produced by a tuning fork has no harmonics . true or false . also explain why ?
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.
Which of the following voices is likely to have maximum frequency?
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?
name any 7 musical instruments and their vibrating parts
what is the SI unit of vibration ?
a pendulum oscillates 10 times in 5 seconds .find the time period n frequency
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.
any 5 difference between audible and inaudible sound plz do it quick.
What is audible and inaudible sounds
why can't we hear sound above 20000 hertzs?
can you explain the function of larynx?
In the game of hide and seek how the blind folded person guess ho is the nearest person to him
the sound travel the speedest in ?
If we want to hear a train approaching from far away , why it is more convenient to put th ear to the track ?
our teacher told that if we want to hear the echo the distance between the wall and person should be atleast 16.5 m .
But in a small empty room we do hear the echo even though the wall is at a distance less than 16.5 m.
so who is it possible
how do human beings produce sound
What is insomnia ??
What are ultrasonic sounds? Write some applications of ultrasonic waves.
if sound is produced more than 20,000 Hz will it damage the ear drum?
what are two important properties of sound
what is sound of single frequency?
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
why do sound needs a medium to travel?
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 .
wil sound travel through an object which is -200 degrees centigrate? will a man standing 5 m away from it will be able to hear the sound?
what are disadvantages of sound pollution
Sound can travel through _________.
a) gases only
b) solids only
c) liquids only
d) solids, liquids and gases
How to make ektara at home
Spectators watching a game of cricket hear the sound, a spilt of second after a batsman make stroke.
what is sound ?
define sound .
an activity with tuning forks
difference between audible and inaudible sound
if rubber band streched ________ sound produced.
1) low pitch 2) high pitch 3) some times low and high pitch 4) none of these
explain how noise pollution is harmful to human beings?
Draw a simple pendulum and mark extreme and mean position
what is noise pollution
how does bat use ultrasound
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?
time taken to complete one oscillation is called
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