Sound experiment-Noel

This week we learnt about telephone cups we had 1m string and 2 cups.

Aim:We have to use cups and string and use them as telephones.

Prediction: I predicted that you can hear through the cups but it will be very faint.

Variable:change string length, string travel through solid/liquid, same size cups, same size hole in cups and same types of string.

Safety considerations:Do not shout into cups: might hurt ears

Method:we made a hole in the cup and poked the string  through and talked and listened though cups.

Results:It worked but the sound was faint because the string is  too long.

Conclusion:The test was a sucsess but sound is

very faint and you can't hear some things.

Picture:In the picture we are just testing the cups (I'm the one in the back with glasses).