摘要：AbstractThis research aimed to study cause of the 95 Grade 11 students’ misconceptions about light. The concept of light in this study includes the nature of light, light deflection and reflection, vision and light, and light dispersion. The research instruments consist of open-ended questionnaire of light, and the informal interview. The open-ended questionnaire raised the situations or phenomena that need to be explained through the concept about light. Data analysis was done by categorizing students’ ideas about light. Findings revealed that the majority of students held the concept about light related to light from the nature; for example, light from the sun and the moon. Students recognized the wave property of light as wave of the sea and mobile phone wave. They also recognized the light dispersion as expanding of the light beam rather than the refraction of compound light. Light deflection and reflection was recognized as light changing direction or travelling in curve. Regarding students’ ideas would suggest that their misconceptions related their experience, particularly wording and terms using in everyday life. Additionally, it would be mentioned that students lack of linking physics with the natural phenomena.
