Year 10 Physics: Force Fields Lab
Thursday, October 15, 2020
Year 10 students from Assumption College English Program investigate the magnetic field associated with the Earth. A sewing needle is made of steel, which a ferromagnetic material. It will align with the earth’s magnetic field if allowed to rotate freely. There is too much friction for it to be able to rotate on a desk or a book. But if the needle were floated on the surface of some water, then it would be able to rotate freely. Students compared the direction of the needle with that of a regular compass.
Students also examined the electric field of a balloon with an electroscope. First, the balloon was charged by rubbing. By bringing the balloon near to the electroscope, a separation of the leaves of the electroscope could be observed.
Text written by Mr David Condie – Physics teacher