Alexander Bell used the same technique using telephone wire which can travel for miles. Mechanics- force and motion is one dimension . Decorate the cups if desired. Any length of string can work, but a length of 10-30 feet is ideal; the string needs to be taut for the phone to work well, making longer lengths a challenge. You will need two tin cans and some string. Answer Save. in detail. Photo: Modern telephones scoop up their power from the phone line, batteries, or a plug-in adapter; before electric power became so convenient and widespread, telephone users had to generate some of their own power for a call using a built-in, hand-cranked generator called a magneto.This is an early example of a magneto phone in Buffalo Gap Historic … If the speaker or listener is holding the cup perpendicular to the string, so that the string is touching the edge of the cup, it will dampen the sound. The string needs to be tight between the cups—a loose string will not transmit sound as well. How does the string telephone work? What is the best way to fold a fitted sheet? Either knot or tape the string so it cannot go back through the hole when the string is stretched. When you're done, pull the string tight so … Have each person take an end and walk apart until the string is TIGHT. When you pick up the phone, the switch senses the completion of your loop and it plays a dial tone sound so you know that the switch and your phone are working. Is green skull in the pirate bay is good? What floral parts are represented by eyes of pineapple? If someone grabs the string, or it gets stuck on something, the … Take a piece (perhaps 100 feet [30 meters]) of non-stretchable thread or kite string and thread each end through each hole. Cut a long piece of string, you can experiment with different lengths but perhaps 20 metres (66 feet) is a good place to start. Position the two cans so that the … Relevance. If your impeached can you run for president again? Position the two cans so that the Experiment with your string telephone by gently pulling the string taut and then letting it fall loose. What I found is the 1st person having the one cup speak in the cup and another person with his cup on his ear can listen. If someone were to touch the string part way along, their finger The can vibrates the air, causing sound waves, duplicating your original sounds. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply. As you talk into one cup, the vibration is … How do you think about the answers? A string telephone can be used to transfer sounds. If it rapidly stopped and you didn't let go, would you be injured? You can sign in to vote the answer. The vibrations then travel through the string and does the reverse process of vibrating the can and letting the other person hear what you say. In a modern phone system, the operator has been replaced by an electronic switch. Could the phone work under water? in the center bottom of each can, and run the string through each It's made using plastic cups and string. Does the length of the string affect the loudness of sound? I am 15 yrs old. other can. How does this resource excite and engage children's learning? A microchip inside the phone turns these signals into strings of numbers. Using the Phone. Lv 5. This project demonstrates that sound can travel through the string. mke sure u relate it 2 sound n vibrations, String needs to be tight between the cans, When you speak into the can, you vibrate it with the sound waves from your mouth. How long will the footprints on the moon last? To speak through the tin-can phone, children should move apart until the string is taut 1. What is the denotative and connotative meaning of clouds?
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