a A. IDENTIFICATION. Direction: Identify what is being asked in each item. 1. The audible range of frequency for human. 2. Sounds whose frequencies are lower than 20 hertz. 3. Sounds whose frequencies are higher than 20000 hertz. 4. The outer ear which is shaped like a funnel. 5. A longitudinal wave created by vibrating objects. 6. The voice box. 7. The highness or lowness of the sound. 8. The energy delivered to a unit area of a surface per unit of time. 9. Other term for quality. 10. The unwanted or damaging sounds.
