The Best Alkaline Battery for Mechanical Energy

Overview

Objectives/Goals The purpose of the experiment was to determine which medium priced, non-rechargeable, D cell alkaline battery made the most mechanical energy. Based on my study of battery advertisements, my hypothesis was that the Energizer battery would make the most mechanical energy. Methods/Materials The experiment involved testing six medium priced batteries. A motor was made to raise a one gram weight. The time and distance the weight was raised were measured. The test was repeated five times for each battery. The power and value of each battery was calculated. Results The average power ranged from 0.071 ftlb/min to 0.083 ftlb/min. The average value of power generated ranged from 0.038 ftlb/min$ to 0.083 ftlb/min$. Conclusions/Discussion The data proved my hypothesis was correct, the Energizer battery made the most power at 0.083 ftlb/min. The Eveready battery was the best value at 0.083 ftlb/min$. To make the most power for an appliance or a toy, the Energizer battery should be purchased. A thrifty consumer would buy an Eveready battery since it made the second highest amount of power, but was the best value based on its lower cost.

Competition history

• CSEF 2002 Materials Science (Junior Division Only) · Entry J1133

Resources

• CSEF project summary ↗

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