Review Note
Last Update: 10/22/2023 02:45 AM
Current Deck: SrikAnki::Term 1 - TTM::Week 1::POCUS
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{{c6::frequency}} describes the number of events per unit time, or the number of cycles per second
- unit for {{c6::frequency}} is cycles, termed {{c7::hertz}} (Hz)three classification of sound:
- {{c3::infrasonic}}: frequencies below the audible range <20 Hz; this is demonstrated in nature by {{c8::seismic}} waves from earthquakes, volcanoes, or meteor strikes
- {{c2::audible}} range: 20-{{c4::20,000}} Hz; frequencies within this range can be heard by most human ears
- {{c1::ultrasound}} range: >{{c4::20,000}} Hz; these frequencies are above the range of human hearing (most ultrasounds are 1-20 million Hz)
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