(video credits S. C. Ash) (this is a slow-mo video of the magnets in the "swing/bounce/circle test")
(photo credits S.C. Ash) this image is showing 70-75< magnets being suspended vertically with 4 of the spherical NdFeB magnets straight form)
(photo credits S.C. Ash) this image is showing 70-75< magnets being suspended vertically by 4 of the spherical NdFeB magnets. cluster form)
MATERIALS
A range of different sized Fe magnets (Fe “Iron” = flat/circular)
4 spherical NdFeB magnets (NdFeB “Neodymium Iron Boron” = spheres)
Safety Goggles
A video recorder/camera
A mass scale (grams)
PROCEDURE
Keep all of your Fe magnets in a non-metal container (ex. plastic)
Make sure your magnets are connected to each other creating a cluster with at least 30-40 magnets (for coolest results have thicker/denser/wider magnets on top ref. picture above)
Measure the mass (if you can) of your magnet cluster (if you don’t have a scale big/strong enough to carry the weight, take increments of 5 or 10 magnets and find the total mass of each using arithmetic)
One by one add one sphere to the top of your magnet cluster and do a lift test to see how many spheres can carry the cluster
If you have any spare Fe magnets add more to the cluster to test the strength of the spherical magnets
Finally, if you’re feeling very confident in the strength of the spherical magnets, do a swing, circle bounce test.
Record your observations
RESULTS:
This lab showed that the NdFeB magnets had a greater force and attraction with the Iron magnets due to ferromagnetism allowing just 4 to be able to carry so many magnets.