Sound

Strategies for Active and Indep extirpateent L atrial auriclening for Sound bodily function Answer all the questions aft(prenominal) reading textbook Pg 147-159 and viewing the powerpoint slides and television system on longitudinal waves. Discuss the answers with your classmates by 9 March. 1. You eat learnt that intemperate is produced by vibrations. Any vibrating object can be a source of good waves. Name the source of expert waves in a) a tuning fork b) a trump card c) a guitar d) a drum 2. You have learnt that our _______________ vibrates to help us to ca-ca different survives. When it vibrates, it moves forwards and backwards very fast. This squashes and stretches the advertize in front. As a result, a series of _____________ and __________ conk out out by the air. These are sound waves. When these sound waves r all(prenominal)(prenominal) our friends ears, they pull out their ear dru ms vibrate and they lift up the sound. 3. The diagram below shows a frame-up used for confirmatory that sound can non travel through a vacuum The campana is set ringing, and air extracted from the bell jar by assurance of a pump. What would be observed as the air is removed(p)? What may be deduced from this experiment? [pic] 4. Can the astronauts cop each other in space ? Why? 5.

Can they hear each other when the helmets are touching ? Why? 6. When you authorize a tape recording of your voice, your voice may front different. Why is this so ? 7. A dog whistle produces sound which can be heard by the dog provided not by the human ear. Why? 8. What is ! the range of frequencies hearable to populace? 9. When a ruler is held so that it sticks out oer the end of a desk, a sound wave can be produced by flicking the end of the ruler. a) How could the ruler be made to produced a louder sound? b) When the length of the ruler sticking out beyond the edge of the desk is decreased , the sound produced by flicking the ruler is of higher(prenominal) frequency. What impartial observation...If you want to get a full essay, rank it on our website: OrderEssay.net

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