Table of Contents
Would a cup phone work in space?
Sure! The sound waves in a tin-can phone don’t travel in air, they travel by means of longitudinal waves on the streatched string.
Does a string telephone Work with plastic cups?
Take a step back in time an make a fun string telephone with your kids and learn how sound travels! To make your own String Telephone, you will need: 2 plastic or paper cups – a tin can works great too. String (you can experiment with different lengths)
How does sound travel through plastic cups?
Sound waves are created when sounds make vibrations in the air. In this activity, your voice vibrates the air inside the cup, which are then transferred to the bottom of the cup. The bottom of the cup passes the sound waves to the string, and so on to the other cup.
How do you make a phone out of plastic 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.
Do Cup phones work around corners?
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.
What kind of string do you use for a telephone cup?
A paper cup phone requires two cups, a length of inelastic string, thread or fishing line, two paper clips and a pencil or sewing needle. To create a paper cup phone, poke a hole in the bottom of each of the cups with the pencil or sewing needle and thread each end of the string through each hole.
Do cups and strings work?
What kind of string works best for CAN phones?
Step 1. You will need 2 empty tin cans, a hammer, a nail or screw, masking or duct tape, and a long piece of cotton string or fishing line, about 10 to 30 feet in length.