Third Grade
Worksheets
There's a Magnet in My Speaker
Magnets have many uses. Some of them are very obvious. Magnets can hold paper to a refrigerator. Magnets on a purse or a laptop computer can hold them shut. A magnet on the end of a string can help recover a dropped tool or key. There are many places magnets aren't obvious. Did you know there are magnets in cars? Did you know magnets are used in your television? They are used in speakers and microwave ovens. Magnets are everywhere!
Magnets are a very important part of speakers. The speakers in your computer, television, and headphones have magnets in them. Without magnets, they wouldn't work at all.
Speakers have only a few parts. There's the cone, the voice coil, and a magnet. The cone is the part of the speaker where the sound comes from. Many cones are made of paper or plastic. Some are made of metal. They look like really wide, flat ice cream cones.
