This study intends to find out the factors affecting the pedagogical content knowledge of physics teachers. Two research questions were answered using survey research design. A total of 60 Bauchi State secondary school physics teachers constituted the population for the study and 20 teachers were selected using stratified random sampling techniques out of the population. Questionnaire with five point Likert Scale was used for answering the research questions   and the outcome of the questionnaire was analyzed using simple statistical tools of mean and standard deviation. The findings thus, revealed that teachers’ attitude, textbooks content, curriculum content and teacher motivation affect the pedagogical content knowledge PCK of physics teachers.