Science ClubPosted on: 26/05/2021
Last Thursday, in science club, Ms Grigorova taught students how to make homemade speakers using paper plates, this was also related to the topic electromagnets which Y8 students have currently finished. Students found out that when they plugged their homemade speaker into an audio device and played a song, they were able to hear the song coming from the speaker. Students noticed this happens because audio devices send electrical signals to the coil of wire, which turns it into a temporary magnet. This temporary magnet pushes on the permanent magnets, causing the paper plate to vibrate. This vibration generates sound waves in the air that are picked up by your ear!