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Fuck

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sala harami

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The sound is caused due to thevibrating string.
The source is the string.
The medium is gas, through which the sound from the guitar reaches our ears.

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Ans 4-
Sound travels faster in solids than in liquids because the solid particles are more tightly packed than in liquids. So sound takes less time to travel through solids than in liquids

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1THE PROPERTIES OF SOUND ARE :
1 SOUND IS CAUSED BY VIBRATIONS
2 SOUND CAN BE REFLECTED
3 SOUND CAN BE MODIFIED
4 SOUND CAN BE ABSORBED
5 SOUND  TRAVELS IN WAVES
Sound needs a medium to travel

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dolphins can communicate BECAUSE sound can travel through water.

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Ans-sound is caused by vibrations, sound is a longitudial wave, sound is a form of energy and sound can be heard
.
CHALLENGE QUESTION
why do people who attend race wear ear muffs?

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Sound can travel through solids
sound is faster in solids [ metals] compared to gas
Hence when we put our ears we are able to hear the sound, much before we can even see it,

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Q3.Source-string
Medium-air
The vibration has caused the sound.
CHALLENGE-
how does sound travel faster in solids than in liquids?

Particles in a solid are more tightly packed than in liquids. This makes the sound travel faster.

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Pinna channelizes
Ossicles vibrate
Cochlea-liquid vibrates

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6.Dolphins can communicate in the oceans. Explain

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6.Dolphins can communicate in the oceans. Explain

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4. I can hear the sound of the coming train if I put my head on the railway track

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4. I can hear the sound of the coming train if I put my head on the railway track

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3. Name the source and the medium . What has caused the sound? 

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3. Name the source and the medium . What has caused the sound? 

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make a flow chart