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4.2 SOUND
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- 1HOW IS SOUND PRODUCED?SOUND IS WHEN SOMETHING VIBRATES, MOVING BACK AND FORTH VERY QUICKLY.
- 2WHAT IS COMPRESSIONS?A REGION OF HIGH PRESSURE IN WHICH PARTICLES ARE CLOSE TOGETHER.
- 3WHAT IS RAREFACTIONS?A REGION OF LOW PRESSURE IN WHICH PARTICLES ARE FAR APART.
- 4WHAT IS A SOUND WAVE?REGIONS OF HIGH AND LOW PRESSURE ORIGINATING FROM A VIBRATING OBJECT AND TRANSMITTED THROUGH A MEDIUM.
- 5WHAT IS THE VIBRATING SOUND OF SPEECH?FOLDS OF SKIN (CALLED VOCAL CORDS)
- 6NAME TWO TYPES OF WAVES.TRANSVERSE WAVE AND LONGITUDINAL WAVE.
- 7DEFINE LONGITUDINAL WAVE.A WAVE IN WHICH VIBRATION IS IN THE SAME DIRECTION AS THE WAVE IS TRAVELLING.
- 8DEFINE TRANSVERSE WAVE.A WAVE IN WHICH THE VIBRATION IS AT RIGHT ANGLES TO THE DIRECTION THE WAVE IS TRAVELLING.
- 9WHAT IS AN ECHO?A SOUND THAT IS REFLECTED AND HEARD A SECOND TIME.
- 10WHAT IS THE LENGTH OF TIME IN WHICH SOUND CAN BE HEARD?REVERBERATION
- 11WHAT IS AN OSCILLOSCOPE?IT CONVERTS SOUND WAVES INTO ELECTRICAL SIGNALS THAT CAN BE VIEWED ON A SCREEN.
- 12WHAT IS FREQUENCY MEASURED IN?Hz
- 13WHAT IS A WAVELENGTH?THE DISTANCE BETWEEN TWO PEAKS THAT ARE NEXT TO EACH OTHER.
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- Fichas sobre 4.2 SOUND, creado por Nasteho Ali Mohamed el 28/07/2019.
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- Nasteho Ali Mohamed
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