Why are Compact Fluorescent Bulbs More Efficient?

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In this activity, learners explore the relative efficiency of different bulbs, specifically incandescent vs. fluorescent. Learners will observe that energy "wasted" from an incandescent bulb can be used to run a solar cell toy. Then, they will experiment to find out what happens to the solar toy when they block infrared light by placing Thermashield and colored gels in between the toy and lamp.

Quick Guide

Preparation Time:
Under 5 minutes
Learning Time:
10 to 30 minutes
Estimated Materials Cost:
Over $20 per group of students
Age Range:
Ages 8 - 14
Resource Types:
Activity, Lesson/Lesson Plan
Language:
English

Materials List (per group of students)

Keywords

Subjects

  • Engineering and Technology
    • Technology
  • Physical Sciences
    • Energy
    • Vibration and Waves
      • Light and Optics
    • Light and Optics
      • Electromagnetic Spectrum
      • Reflection and Refraction
      • Sunlight and Color
  • The Nature of Science
    • The Scientific Process
      • Conducting Investigations
      • Formulating Explanations
  • The Nature of Technology
    • Technology and Society

Informal Categories

  • Toys

Audience

To use this activity, learners need to:

  • see
  • see color
  • touch

Learning styles supported:

  • Involves hands-on or lab activities

Other

This resource is part of:

Access Rights:

  • Free access

By:

Rights:

  • All rights reserved, Little Shop of Physics, 2009