Rotational kinematics of a particle in rectilinear motion: Perceptions and pitfalls

Rectilinear motion of a particle with constant velocity is one of the simplest situations one can envisage in mechanics. We discuss the rotational kinematics associated with this motion and find that they are of pedagogical relevance. We have constructed a small inventory consisting of conceptual multiple-choice questions after consultation with content experts and feedback from students. This inventory was administered to a group of physics teachers and the responses reveal interesting misconceptions harbored even by teachers. A brief discussion of the pitfalls and instructional implications is carried out.