Make a Speaker

Make science come in loud and clear. Pupils learn about how a speaker works by building one. The scholars first learn about electromagnetic fields by building an electromagnet. Using that knowledge, they build a crude speaker using a paper cup, wire, and a ceramic magnet.

3 Views 2 Downloads NGSS: Adaptable
Additional Tags
Instructional Ideas
  • Bring in an old speaker to disassemble to reveal its components
  • Have the class determine methods to find the strength of the homemade electromagnets
Classroom Considerations
  • Requires working with electricity, which may be a safety concern
Pros
  • Provides a suggestion on where to find ceramic magnets
  • Includes links for further extensions
Cons
  • None
NGSS