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Make a Speaker


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    Science Friday

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Make a Speaker

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

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

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