One of the best topics of understanding energy efficiency is that of light bulbs. Consider the following graph, excerpted from The Science of Energy Efficiency, available from Schottenbauer Publishing.
- Identify the power and current required for each light bulb.
- Which light bulb is more efficient? Why?
- When the light bulbs are turned on, is the effect immediate? Why or why not?
- What occurs in the circuit when the light bulbs are turned on?
Over 8,000 graphs from Schottenbauer Publishing provide additional real-life topics for student learning, including sports, transportation, construction, environment, music, entertainment/toys, and general physics.