(c) (9) 14) Which of the following statements about some passed waves is incorrect? a) The loudness of a sound relates the intensity of any given sound to the intensity at the threshold of of hearing. b) The intensity of a sound is the power of the sound in Watts divided by the area the sound covers in square meters. c) The unit for the loudness is the phon which is normalized to the intensity at the fixed frequency of f=1Hz d) The frequency of a sound wave is associated with our perception of that sound's pitch. e) Timbre describes those characteristics of sound which allow the car to distinguish sounds which have the same pitch and loudness. 15) The two important functions of the inner car are: a) I: Hearing II:Transduction b) I: Balance II:Transduction c) I: Hearing II:Response d) I: Protection II: Reception c) I: Hearing II: Balance 16) Action potentials occur when the local potential a) becomes more negative. b) reaches zero c) reaches the threshold d) remains constant for a considerable period of time e) causes a hyperpolarization 17) Which of the following statements about action potential is incorrect? a) Action potential will either be generated or not b) Supratreshold stimulus will not elicit action potential c) Action potentials are only generated by muscle cells and neurons d) Action potential is a brief change in membrane potential from resting to hyperpolarization e) Action potentials either happen completely or no at all due to all or none principle.