GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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John plucked the strings of a guitar. He noticed that each string produced a sound with a different pitch. What does pitch describe about a sound?
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how high or low the sound is
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how loud or soft the sound is
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how big the sound is
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how much energy the sound has
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Explanation:
Detailed explanation-1: -Increasing the tension raises the pitch. The length of a string is also important. When a string is supported at two points and plucked, it vibrates and produces sound. However, if the length of this string is shortened, its pitch will increase.
Detailed explanation-2: -When a guitar string is plucked, the string vibrates and creates sound. The length of the string determines its fundamental frequency of vibration.
Detailed explanation-3: -If the guitar string is thicker, the pitch of the sound will be lower. This is because thicker strings have a lower vibration frequency than thinner strings. The tuning keys on guitar strings are used to adjust (tightened) and loosen them.
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