Make a Speaker

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In this activity, learners explore how an electromagnet works by making a simple one. Using this knowledge, learners design a diagram to make a working speaker using household materials. Then learners follow instructions on one method of making a speaker, and test their own designs to compare results.

Quick Guide

Preparation Time:
Under 5 minutes
Learning Time:
45 to 60 minutes
Estimated Materials Cost:
$10 - $20 per group of students
Age Range:
Ages 11 - 14
Resource Types:
Activity, Lesson/Lesson Plan
Language:
English

Materials List (per group of students)

  • Reel of insulated copper wire
  • Three-inch nails
  • Double A (AA) batteries
  • Paper clips
  • Small round ceramic magnets
  • Plastic cups
  • Boom box radio - must have speaker wire output port
  • Roll of masking or Scotch tape
  • Scissors

Keywords

Subjects

  • Engineering and Technology
    • Engineering
      • Electrical Engineering
  • Physical Sciences
    • Electricity and Magnetism
      • Electric Charges and Currents
      • Electromagnetic Fields
      • Electric Circuits
    • Vibration and Waves
      • Sound
  • The Nature of Science
    • The Scientific Process
      • Conducting Investigations
  • The Nature of Technology
    • The Design Process
      • Research and Development
      • Invention and Innovation
      • Problem Solving
      • Troubleshooting and Maintenance

Informal Categories

  • Electronics
  • Music

Audience

To use this activity, learners need to:

  • see
  • hear
  • touch

Learning styles supported:

  • Involves hands-on or lab activities

Other

Includes alignment to state and/or national standards:

This resource is part of:

Access Rights:

  • Free access

By:

  • Education, Science Friday

Rights:

  • All rights reserved, Science Friday, 2011