How is loudness of a sound determined?
The loudness perception of a sound is determined by the amplitude of the sound waves. The higher amplitude the louder the sound or the noise.
What determines the pitch and loudness of sound quizlet?
Terms in this set (3) Sound volume is determined by the amplitude of a sound wave. Sound pitch is determined by the frequency of the sound wave.
How can we hear sound through our ears?
The Inner Ear As the fluid moves, 25,000 nerve endings are set into motion. These nerve endings transform the vibrations into electrical impulses that then travel along the eighth cranial nerve (auditory nerve) to the brain. The brain then interprets these signals, and this is how we hear.
What is loudness of a sound called?
The loudness of sound is determined, in turn, by the intensity, or amount of energy, in sound waves. The unit of intensity is the decibel (dB). As decibel levels get higher, sound waves have greater intensity and sounds are louder.
What is the main feature of a sound that determines the pitch?
Pitch depends upon the frequencies of the sound wave. A note has a higher pitch when the frequency is high and a note of low frequency has a low pitch. For example, when a small baby speaks something, his/her voice has a higher frequency so in case of a baby the pitch is higher than the pitch of a man.
What is the relationship between the frequency and the pitch of a sound?
Explain the relationship between frequency and pitch? The frequency of a sound wave is the number of vibrations that occur per second. The pitch of a sound is a description of how high or low the sound seems to a person. The pitch a person hears depends on the frequency of the sound wave.
How do we hear sound through our ears in class 8?
These sound waves pass through the ear canal and fall on the ear drum. When the sound waves fall on the eardrum , the eardrum starts vibrating back and forth rapidly. The vibrating eardrum causes a small bone hammer to vibrate. The brain interprets these electrical impulses as sound and we get the sensation of hearing.