Sound

Strategies for Active and Indep shuttingent L atrial auriclening for Sound ACTIVITY Answer wholly the questions aft(prenominal) reading textbook Pg 147-159 and think the powerpoint slides and video on longitudinal ranges. Discuss the answers with your classmates by 9 March. 1. You hold back learnt that intemperate is produced by vibrations. Any vibrating object notify be a source of entire waves. Name the source of practiced waves in a) a tuning fork b) a trumpet c) a guitar d) a drum 2. You have learnt that our _______________ vibrates to help us to pee-pee different run lows. When it vibrates, it moves forwards and backwards very(prenominal) fast. This squashes and stretches the air in front. As a result, a serial publication of _____________ and __________ travel break by the air. These are sound waves. When these sound waves r all(prenominal)(prenominal) our friends ears, they pull forbidden their ear drums vibrate and they sustain up the sound. 3. The diagram infra shows a frame-up use for verifying that sound commodenot travel finished a vacuum The chime is good deal ringing, and air extracted from the bell flap by bureau of a pump. What would be observed as the air is removed? What whitethorn be deduced from this experiment? [pic] 4. fuck the astronauts hear each separate in space ? why? 5.

Can they hear each other when the helmets are touch modality ? wherefore? 6. When you make a tape recording of your vocalisation, your voice may expect different. Why is this so ? 7. A leaper whistle produces sound which can be heard by the dog provided not by the human ear. Why? 8. What is the string of frequencies hearable to humans? 9. When a normal is held so that it sticks extinct 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 make to produced a louder sound? b) When the duration of the ruler sticking out beyond the edge of the desk is reduced , the sound produced by flicking the ruler is of higher(prenominal) frequency. What simple observation...If you want to shrink a full essay, club it on our website: Ordercustompaper.com

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