1.How are sound produced in humans?
2.Differentiate wavelength,velocity,and amplitude
3.Give one example of an animal and describe how it produces sound.Identify the range (highest and lowest frequency) of sound that it can detect
2.Differentiate wavelength,velocity,and amplitude
3.Give one example of an animal and describe how it produces sound.Identify the range (highest and lowest frequency) of sound that it can detect
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Answer:
1.The vocal folds (vocal cords) are attached within the larynx to the largest of the laryngeal cartilages known as the thyroid cartilage or "Adam's apple". The vocal folds produce sound when they come together and then vibrate as air passes through them during exhalation of air from the lungs.
2.Wavelength is a property that is defined only for waves but the amplitude is defined to vibrations or oscillations. Wavelength is a property that is connected with the velocity and frequency of the wave, whereas the amplitude is a property that is dependent on total energy of the oscillation.
3.Well, the phrase is extremely accurate! Elephants have some of the best hearing around. They can hear at frequencies 20 times lower than humans. It isn't just their ears that perceive sound; these majestic beasts also have receptors in their trunks and feet that are excellent at picking up low-frequency vibrations
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