How to make telephone with cup: A simple cup phone works by transmitting sound vibrations along a tightly-pulled thread. The telephone work in a very simple way. Sound waves cause the bottom of the first cup to vibrate. This vibration, in turn, cause the thread to vibrate. The vibrating thread causes the bottom of the…
How to Make Simple Music Instrument This activity will help children discover the relationship between the rate (speed) of vibration and the pitch (high-low) of sound. Material Needed 50 cm (20 in.) of mono filament fish line with a wooden dowel 10 cm (4 in.) long attached to one end Additional dowel Shoe box with…
See your voice : Sound is something most of us take for granted and rarely do we consider the physics involved. It can come from many sources – a voice, machinery, musical instruments, computers – but all are transmitted the same way; through vibration. This experiment changing sound wave into light so they may be…
How can the energy of sound cause something to move? This activity shows that sound can actually do work. It can make something move. Energy is transferred from one guitar to other by sound waves. And the strings of the second guitar vibrate. The two guitars should be tuned alike so the vibrating frequency is…
Hypothesis If the amount of water is increased the pitch gets lower. I can make music with the bottles of water. Materials needed eight glass soda bottles of the same size and shape water paper slips numbered 1 to 8 pencil Procedure Pour water to different levels in the bottles. Blow gently across the…