B. Distinguish between the following. 1. Frequency and amplitude 2. Supersonic and ultrasonic 3. Music and noise
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3. Music 1. music is a very enjoyful and amazing thing .
2. 1 noise means disturbing to the peoples
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1. The difference between frequency and amplitude
is that frequency is a measurement of cycles per second, and amplitude is a measurement of how large a wave is. Amplitude represents the waves energy.
2. Ultrasonic is used for ultrasound waves and is defined as waves with frequency more than 20kHz. They cannot be heard by human beings. Supersonic is used for objects which travel at a speed greater than the speed of sound.
3. Music is a sound that produces a pleasing sensation. It is produced by nature, musical instruments, human voice,etc. Noise is an unwanted and unpleasant sound produced by horns of vehicles, by machine, etc.
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