What are the science ideas in an electric doorbell

[From: ] [author: ] [Date: 11-10-06] [Hit: ]

magnetism, mechanical resonance,......

For a physics assignment. Things like circuits? I'm not sure. Could you please go into depth as well?
Thanks :)

Electricity, magnetism, mechanical resonance, sound

keywords: an,are,ideas,electric,in,doorbell,What,science,the,What are the science ideas in an electric doorbell