Most people can hear sounds of pitch ranging from 20 to 20,000 vibrations every second. a) What is the name for sounds that have a pitch higher than 20,000 vibrations every second?___________________________________________________________________ b) Look at the table below. It shows three keywords, their definitions and the units used for that key word.
Answers
Answer:A sound with a high frequency will have a high pitch, such as a dog whistle. Humans cannot hear sounds of every frequency. The range of hearing for a healthy young person is 20 to 20,000 hertz. The hearing range of humans gets worse with age. People lose the ability to hear sounds of high frequency as they get older.
Most people over 18 can't hear these sounds ... is about 20 hertz (cycles per second) to 20,000 hertz (or 20 kilohertz). ... are not ones we hear every day. They're not ones we need to hear.
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Answer:
ultrasound.
Explanation:
Any sound with a frequency below the audible range of hearing (i.e., less than 20 Hz) is known as an infrasound and any sound with a frequency above the audible range of hearing (i.e., more than 20 000 Hz) is known as an ultrasound.