Do Cup phones work?

Asked By: Luciliano Ruiva | Last Updated: 3rd May, 2020
Category: hobbies and interests candle and soap making
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The key is to make sure that the string is tight between the two cups, and this normally means that the distance is limited and the two people have to be connected to each other by a straight line. But as long as the string is tight, it works. It is also a great way to understand how telephones and radio work.

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Also know, do can phones work?

Talking causes little vibrations in the air in front of your mouth, as you can tell by speaking into your hand. This vibration is passed along the string and into the other can. When that can vibrates, it creates vibrations in the air once again and you can hear the other person's voice!

Furthermore, how does a string telephone work? (Example answer: When you speak into the cup, the back of the cup vibrates; the vibration extends into the string, like a push on a slinky; the sound waves, or vibrations, move through the string.)

Also question is, how do you make a cup phone?

Here's what to do:

  1. Make a hole in the center of the base of both cups, using the pin.
  2. Tie one paperclip to one end of the string.
  3. Pull the other end of the string through the hole in one of the paper cups.
  4. Insert the free end of the string into the hole in the bottom of the second paper cup.

How far can a string telephone work?

Pull the string taut and have one person speak into one of the cups while you listen through the other. The cups can be used to communicate over distances of up to 100 feet.

33 Related Question Answers Found

Can you use yarn for Cup phones?

To make your own cup phones, use the tip of a pencil to poke a small hole at the bottom of each of your two cups. We just tied a knot in the yarn on the inside of the cup to keep it in place. If the string keeps slipping through the hole you can tie it to a paper clip to help keep it in place.

How do you make a phone with cups and strings?

Thread one end of string through the bottom of each cup. Place a paperclip or toothpick in the bottom of each cup and tie the loose end of the string around it (the clip or pick is just here to keep the string from slipping through the bottom of the cup). Give one cup to your conversation partner and hold one yourself.

Can sound travel through strings?

If the string is kept tight, the sound waves will travel. If the string is loose, the sound is less. This is because the lose string causes the vibrations to travel all around rather than directly down the string.

How do you make a can phone?

How to Make a Telephone with Cans
  1. Wash the empty cans – unless you want to get beans in your ears!
  2. Hammer a nail through the base of the cans to make a hole in the end of each can.
  3. Insert one end of the string through one of the nail holes.
  4. Hold one tin can, and give the other tin can to someone else.

How does the sound travel?

Sound vibrations travel in a wave pattern, and we call these vibrations sound waves. Sound waves move by vibrating objects and these objects vibrate other surrounding objects, carrying the sound along. Sound can move through the air, water, or solids, as long as there are particles to bounce off of.

How do you make a walkie talkie with cups?

To make a walkie talkie, start by poking a hole in the bottom of 2 paper cups or tin cans. Then, thread one end of a 5-10 meter long string through one of the holes so the end is inside the cup or can.

Do paper cup phones really work?

The key is to make sure that the string is tight between the two cups, and this normally means that the distance is limited and the two people have to be connected to each other by a straight line. But as long as the string is tight, it works. It is also a great way to understand how telephones and radio work.

How do you make a paper phone?

Making a paper phone from scratch. Cut out a small piece of paper or card that is the color you want your phone to be. The paper should be in the shape of a cell phone (this means that you cut it so that the phone is as small or as large as you would like the play cell phone to be). Cut out two pieces of white paper.

How do you make a paper cup?

  1. Fold a perfectly square piece of paper diagonally. When you're done, it'll be in the shape of a triangle.
  2. Fold one corner to the center of the opposite side.
  3. Repeat with the other corner.
  4. Fold the top flaps down to create an opening in your paper cup.
  5. Finished!

How do you draw a cartoon phone?

How to Draw A Cartoon Telephone
  1. First, sketch an oval shape to illustrate the handset.
  2. Next, add a little depth to the base of the phone.
  3. Refine the outline of the handset.
  4. Time to add the buttons and the LCD screen!
  5. Add some details like the phone cord and a shadow below the handset.

What type of wave is sound?

There are two types of waves: Longitudinal waves and Transverse waves. Longitudinal Waves: A wave in which the particles of the medium vibrate back and forth in the 'same direction' in which the wave is moving. Medium can be solid, liquid or gases. Therefore, sound waves are longitudinal waves.

How does voice travel through phone?

The sound energy in your voice makes the air vibrate. Vibrating air carries the sound energy into the phone. The diaphragm in the mouthpiece microphone converts sound energy into electrical energy. The electrical energy travels from the phone, via exchanges, to your friend's phone.

Does a string telephone Work with plastic cups?

2 plastic or paper cups – a tin can works great too. String (you can experiment with different lengths)

How does sound travel through the air?

Sound travels in air as a series of compressions and rarefactions. When an object vibrates it will move back and forth. As it moves forth, it pushes adjacent air particles. This is a compression: an area of high pressure that moves along the direction of the sound wave.

What is the difference between hearing the message through the telephone and through the air?

Hearing the message through telephone travels through wire as electrical signals and then converted back to sound waves. Signals through air are travelled through air via radio waves which are directed to cellular tower and then directed to the receivers mobile and then converted back to sound waves.

What type of wave is sound longitudinal or transverse?

Longitudinal and transverse waves
Longitudinal sound waves are waves of alternating pressure deviations from the equilibrium pressure, causing local regions of compression and rarefaction, while transverse waves (in solids) are waves of alternating shear stress at right angle to the direction of propagation.