The Power of the "Magic Rock"

Overview

Objectives/Goals The objective of my project was to find the exact ratio of a one gram magnet to the mass of various metal rods in increasing increments. By testing the magnet to my smallest rod, I tested each time if the magnet attracted it or not,until I found my average ratio. By finding the ratio, I could use it to predict whether or not a magnet would attract the metal. My goal for the future is to make my results more accurate and prove my ratio to be true with different types of magnets. Methods/Materials a centimeter ruler * magnets with masses starting with about 1g up to 120g. * metal rods (cut) starting at 7/10cm to 10cm going up in increments of 7/10 cm. * Extra Metal Rods; about 4 feet altogether * flat surface that is not metal (plastic or wood is preferred) * mass scale Results All in all, after testing for the ratio of mass of magnet to the mass of the metal rod; it turned out that a magnet can pull, on average, 8.70 times its own mass. Conclusions/Discussion In conclusion, I thought that it would take more magnetic mass than mass of the metal in order to attract it. It turned out that I under estimated the power of the "Magic Rock", it could actually pull, on average, 8.70 times its own mass.

Competition history

• CSEF 2008 Electronics & Electromagnetics · Entry J0817

Resources

• CSEF project summary ↗

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