There are numerous studies in literature related to the use of cartoons in physics, chemistry and mathematics education. However the studies on the use of cartoons as an alternative assessment tool are highly limited. This study was concerned with the use of cartoons as an alternative assessment method. There were five cartoons prepared related to impulse, momentum, impulse-momentum equation, conservation of momentum and vector property of momentum. The study revealed that physics pre-service teachers failed to emphasize the fact that momentum is vector quantity. Also the fact that only 15% of the participants scored a full point for the caricature related to the conservation of momentum is an issue which should seriously be considered. This shows us that there are some problems in the application of the conservation of momentum to everyday examples. Appended are: (1) Example of the Concept Cartoon. (Contains 5 tables and 5 figures.)