Problem M. 326. (October 2012)
M. 326. Hang a horse-shoe or a bar magnet above a compass, and rotate the magnet slowly by 360o, and observe the changes of the compass. Carry out the experiment at different distances between the compass and the magnet, and describe the behaviour of the compass.
Deadline expired on November 12, 2012.
40 students sent a solution. 6 points: Barta Szilveszter Marcell, Holczer András, Horicsányi Attila, Juhász Péter, Kollarics Sándor, Olosz Balázs, Szabó 262 Lóránt, Szabó 928 Attila, Török Dávid. 5 points: Agócs Fruzsina, Antalicz Balázs, Asztalos Bogdán, Béda Ármin, Csathó Botond, Dombai Tamás, Nagy Gergely. 4 points: 6 students. 3 points: 9 students. 2 points: 2 students. 1 point: 5 students. 0 point: 2 students.