In this assignment, you may work alone, with a partner, or in a small group. Discuss the results of your work and/or any lingering questions with your teacher.
You are deciding whether to light a new factory using bulb A, bulb B, or bulb C.
• Which bulb would be better to use on the factory floor?
• Which bulb would be better to use in the break room?
To answer these questions, you will compare the energy usage of the three bulbs.
The amount of energy the lights use is measured in units of kilowatt-hours. A
kilowatt-hour is the amount of energy needed to provide 1000 watts of power for 1
hour.
1. Circle the two bulbs you picked.

Incandescent

Fluorescent

Halogen