Activity Assignment [ A-1 ]

1. How are vibrations in the air on the transmitter side transmitted to the receiver side in a string telephone?
2. Why were electrical telephones better than wire telephones?
3. About how many patents were there for wire telephones? What was their longest range?
4. What was a speaking tube? What were they used for?
5. How long was your string telephone? What material(s) did you try?
6. What improvements would you make to your string telephone to try to make it work better?