Bu çalışma, Gazi Eğitim Fakültesi\'nde farklı anabilimdalı ve sınıflarda öğrenim gören 192 öğrencinin katılımı ile gerçekleştirilmiştir. Veriler 2001 güz dönemi başlangıcında öğretmen adaylarına doğrudan tanım soruları sorularak toplanmıştır. Çalışmanın amacı, öğrencilerin momentum ve impuls kavramlarını tanımlayabilme düzeylerini tespit etmektir. Elde edilen bulgular özellikle liseden yeni gelen 1. sınıf öğrencilerinin bu kavramlara pek aşina olmadıklarını, fakat 4 yıllık öğrenimleri boyunca orta öğretim fizik öğretmenliği anabilim dalı öğrencilerinin tanımları anlamada önemli ölçüde gelişme gösterdiklerini ortaya koymaktadır. Ancak sonuçlar göstermektedir ki bu kavramların öğretilmesi ve öğrenilmesinide gelişme sağlanması için hâlâ This study was conducted in Gazi Faculty of Education with the participation of teacher candidates from different majors and years. Data were collected at the beginning of 2001-Fall semester through written responses to open-ended questions. The purpose was to determine how the teacher candidates defined the concepts of momentum and impulse. The findings show that freshman students were not familiar with these concepts, and that during their four-year study the high school physics teacher candidates have developed a substantial gain in defining these two concepts. However, the results suggest that there is still room for further development in teaching and learning of these concepts at this level.Fizik eğitimi, fen öğretmeni yetiştirme, öğrenci kavramalarıPhysics education, science teacher education, students conceptions Tam Metin

This study was conducted in Gazi Faculty of Education with the participation of teacher candidates from different majors and years. Data were collected at the beginning of 2001-Fall semester through written responses to open-ended questions. The purpose was to determine how the teacher candidates defined the concepts of momentum and impulse. The findings show that freshman students were not familiar with these concepts, and that during their four-year study the high school physics teacher candidates have developed a substantial gain in defining these two concepts. However, the results suggest that there is still room for further development in teaching and learning of these concepts at this level.