6th International Conference of the Balkan-Physical-Union, İstanbul, Turkey, 22 - 26 August 2006, vol.899, pp.499-500
In this study misconceptions, lack of knowledge and error are discriminated from each other and shown in percentages with a three tier Gravity concept test. It is conducted on 41 pre-service physics teachers on grades 4 and 5 at Middle East Technical University.