How does a can and string telephone work?

How does the telephone work? (Exampleanswer: When you speak into the cup, the back of thecup vibrates; the vibration extends into the string,like a push on a slinky; the sound waves, or vibrations, movethrough the string.) Which works better: taut orloose?

Beside this, does a can and string phone work?

The key is to make sure that the string is tightbetween the two cups, and this normally means that the distance islimited and the two people have to be connected to each other by astraight line. But as long as the string is tight, itworks. It is also a great way to understand how telephonesand radio work.

Secondly, how do you make a cup with string and telephone? Here's what to do:

Make a hole in the center of the base of both cups, using thepin.
Tie one paperclip to one end of the string.
Pull the other end of the string through the hole in one of thepaper cups.
Insert the free end of the string into the hole in the bottomof the second paper cup.

Also know, how sound travels through a string telephone?

As the bottom of the cup vibrates, it transmits thevibrations into the taut string. The sound travelsalong the string as a longitudinal wave and ultimatelyvibrates the bottom of the receiving cup. The cup transmits thesound into the air around the listener's ear,allowing her to hear the speaker.

How long can a tin can phone be?

At around 650 ft., it may be the longest working tincan phone ever.

How do you make a phone out of cans?

Steps

Get a piece of string and two empty cans (preferably soupcans).
Punch a hole at the bottom of each can just small enough forstring to fit through.
Pass the string through the hole and into the bottom of one canor cup.
Tie a knot in the end of the string that is inside thecup.

Who invented the tin can telephone?

The very earliest mechanical telephones werebased on sound transmission through pipes or other physical media,and among the very earliest experiments were those conducted by theBritish physicist and polymath Robert Hooke from 1664 to1685.

How does the sound travel?

Sound vibrations travel in a wave pattern,and we call these vibrations sound waves. Sound wavesmove by vibrating objects and these objects vibrate othersurrounding objects, carrying the sound along. Soundcan move through the air, water, or solids, as long as there areparticles to bounce off of.

What is the source of sound in the tin can telephone?

What is the source of the sound in atin can telephone? The source of the sound inany type of telephone is the human larynx, or vocal cords.With a tin can phone, the voice causes the air leaving theoral cavity to vibrate the bottom of the can into which theperson is speaking, which causes the string tovibrate.

How do you make a walkie talkie with cups?

Method 1 Using Tin Cans or Paper Cups

Gather your materials.
Poke the nail through the bottom of each can/cup.
Thread one end of the string into one of the cans.
Tie the string inside the receiver.
Repeat steps 3 and 4 on the second receiver.
Stretch the string out until it is taut.
Talk to the person on the other end.

How did the first telephone work?

Alexander Graham Bell's original telephone,patented in 1876, worked by converting sound into an electricalsignal via a 'liquid transmitter'. This created a varying strengthelectric signal that travelled down a wire to a receiver, wherethrough a reversed process, the sounds werere-created.

What is the speed of sound in air?

The term is commonly used to refer specifically to thespeed of sound in air. At sea level, at a temperature of 21degrees Celsius (70 degrees Fahrenheit) and under normalatmospheric conditions, the speed of sound is 344 m/s (1238km/h or 770 mph).

Why does sound travel faster in solids?

Solids are packed together tighter than liquidsand gases, hence sound travels fastest in solids. Thedistances in liquids are shorter than in gases, but longer than insolids. Gases are the slowest because they are the leastdense: the molecules in gases are very far apart, compared withsolids and liquids.

What information would you need to measure the speed of sound?

SPEED=DISTANCE/TIME. To work out the speedof the sound in metres per second, divide the distance inmetres by the average time in seconds. For example 170 metresdivided by 0.50 seconds = 340 m/s. You have calculated thespeed of sound!