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Question 1 {1 point) If a bat emits X sounds in Y s. the frequency of the bat's vocal outbursts is _______ Hz (use the variables to show how the answer is arrived at}. Paragraph v B I uv s av av 32 at" + v :c A Question 2 {1 point) E-Il Which of the following is not an example of a wave motion? 0 A) A tsunami event occurring after an earthquake. O 31 Avibrating Slinky showing crests and troughs. O C] A person dancing. 0 D) The sound of a tuba. O E) An earthquake's energy travelling through the core of the planet. Question 3 [1 point} Eu A standing wave is set up in a pool 24 m long which contains six loops. What is the wavelength? OAi4am Question 4 [1 point] EII: If one crest has a 3 cm amplitude and interacts with another pulse to produce a crest 8 cm high this demonstrates: O A) destructive interference O B) a node 0 Cl Doppler Effect 0 D} constructive interference Question 5 [1 point} own In a standing wave the medium at a node is O A} not moving. 0 3} showing constructive interference. O C} at its maximum amplitude from its rest point. 0 '3'} moving faster then anvwhere else. Question 15 [1 point} emu Hovv ma nv nodes are seen in the third mode {second overtone}? OAJS OB}2 0:114 Ooio Question 7' [1 point] E-Il If a motorcycle is travelling toward an obseryer the frequency the observer hears is _______ the actual sound made by the motorcycle. 0 Jill smaller than 0 Bl lower than 0 Cl greater than 0 Bl the same as Question 3 [1 point] Elma If one tone has a frequency of X Hz and another tone is played near it with a tone of '1' Hz, the beat frequency is _ Hz. Paragraph Add a File Reoord Audio Record Video