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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.
- Under 5 minutes
- 45 to 60 minutes
- $10 - $20 per group of students
- Ages 11 - 14
- Activity, Lesson/Lesson Plan
- English
Quick Guide
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
-
Engineering
-
Physical Sciences
-
Electricity and Magnetism
- Electric Charges and Currents
- Electromagnetic Fields
- Electric Circuits
-
Vibration and Waves
- Sound
-
Electricity and Magnetism
-
The Nature of Science
-
The Scientific Process
- Conducting Investigations
-
The Scientific Process
-
The Nature of Technology
-
The Design Process
- Research and Development
- Invention and Innovation
- Problem Solving
- Troubleshooting and Maintenance
-
The Design Process
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