After using the telephone you have built, fill in the blanks to describe how sound travels from the speaker's mouth to the listener's ear.  are transferred form the speaker’s mouthto the inside his/her cupthen to the then to the  in the string then to the cup of the then to the air inside the cupand finally to the of the listener.

Explain how the sound of Elina's voice travels from her mouth and is detected by her phone. Use the analogy with the human ear to support your explanation.

The image below shows two students communicating with a telephone made from cups and string.How does the information transfer between two people using a cup and string phone compare to the information transfer between two people using cell phones? A. The cup and string phone transfers information using electromagnetic waves, but a cell phone transfers information using sound waves. B. The cup and string phone transfers information using sound waves, but a cell phone transfers information using electromagnetic waves. C. Both the cup and string phone and a cell phone transfer information using sound waves, but they each travel through different mediums. D. Both the cup and string phone and a cell phone transfer information using electromagnetic waves, but they each travel through different mediums.

______ in a telephone circuit refers to the speaker's voice bouncing back from certain disjunctions of the circuit such that the speaker can hear parts of his or her conversation.Group of answer choicesJitterDelayMiterEcho

The simple diagram above shows some of the similarities between the human ear and a microphone.Explain how the sound of Elina's voice travels from her mouth and is detected by her phone. Use the analogy with the human ear to support your explanation.

Describe the algorithm used by a telephone to place a phone call. (You maygive your description in either English or a pseudocode, whichever you findmore convenient.)