Education: Physics, Magnetism
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Compass, 90mm diameter
United Scientific SuppliesThis magnetic compass is extra large (90mm diameter), comes in a bright color plastic case, with a clear plastic top. Shipping weight: 2.0 oz. Dimensions: 4"; x 4"; x 1".
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Demonstration Compass
United Scientific Supplies4"; Magnetic needle on plastic support with a brass pivot.
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Compass 55mm Diameter with Color Coded Poles and Plastic Body
GSC International, Inc.The economical compass is perfect for an earth science classroom or home school project. The body of the compass is 55mm diameter. The poles are brightly color coded and the compass is marked every 5 degrees and a hole is provided at the top for a lanyard.
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Cylinderical Magnet
United Scientific SuppliesStrong Alnico 1 Cylindrical Magnets, shipped in pairs, with separators and keepers.
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Compass Board with 20-Ungraduated 20mm diameter compasses
GSC International, Inc.Use this Compass Board and a magnet (not included) to experiment with magnetism, explore magnetic fields, and learn about the functioning of compasses. Each board contains 20 individual compasses.
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Primary and Secondary Coil
GSC International, Inc.The unit is used to study electromagnetic induction and transformer principles. The outer coil is 3.25" h x 2.75" d, the inner coil is 3.75"h x 1.25" d. The removable steel core is 4.5" h x 0.5" d. The coils are wrapped with 20 gauge magnet wire and fitted with insulated binding posts. Instructions included.
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Cow Magnet
United Scientific SuppliesThis magnet is generally fed to cows to attract metal particles they may have ingested while grazing. Students can use it in the classroom for magnetic field demonstration and other interesting experiments.
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Ampere's Rule Apparatus
United Scientific SuppliesThis apparatus allows students to study the magnetic field around a wire. Heavy brass wire with terminals is arranged on a calear plastic base. Also included are 1 each 45mm comlpass, and 6 each 16 mm compasses and an activity guide.