Talking Through Cups

Name: Taeshell, Cheyanne, Raeleen

Title of experiment: Talking through cups

Question:

(What do we want to find out?)

We want to find out if its possible to talk through cups and still hear each other. We also want to find out if this experiment is going to work. I also want to find out how vibration works using cups, strings and an ice block stick. How are we able to hear each other.

Hypothesis:  (what do you think will happen?)

I think it that the thickest string is going to work and also the rope string. I think this because the first string may be too thin and the more space the vibrations have to travel the clearer and louder you'll hear the other person your communicating with.

Procedure:

How will we find out?

(Step by step)

1. First of all we need to make a hole with a pin in both cups so that the thin string can fit through

2. We need to thread the string through the hole and attach it to a ice block stick inside the cup.

3. We need to tie the string around the ice block stick so that it won't be able to come out

4. When we are finished with that string we detach that string from the ice block stick and move on to the rope string

5. For it to fit through we need to make the hole a little bit bigger.

6. Next we thread that string through the hole and tie it to the ice block stick.

7. After we've finished with it we can move onto the thickest string. So we need to take the string off the ice block sticks.

8. We'll probably need to make the hole bigger using a pin once again so that the string can fit through

9. Thread it through the hole and tie it to the ice block sticks.

10. That's how we're going to find out.

Results:

What actually happened?

1. We were able to hear through the thin string. It was allright but it could've been better. The noise level could of been louder.

2. When using the rope string it was much better then our first string, we could hear each other very clearly maybe because it was thicker. I also think that the further away the person your communicating with is. It's

3. Our last string was probably the loudest out of all of them. I think that this string was the loudest because it was the thickest out of all of them.

Conclusions:

What did we learn? We learnt that using cups as telephones actually do work. We also learnt that the thickest string is probably the string that's going to work. Probably the closest you and the person your communicating with, you'll be able to hear them much more clearer and louder. I also learnt how vibration works when you have 2 cups, strings and an ice block stick. When you talk into the cup your vocal cords vibrate and make the bottom of the cup vibrate as well. When it vibrates the vibration travels through the string and to the other person your communicating with. Since you're listening to them with a cup and the cup covers your ears. You can hear them clearly. I think it depends on the length of your string and the thickest your string is.