Addressing learning difficulties in Newton's 1st and 3rd Laws through problem based inquiry using Easy Java Simulation

laws, using frictionless constant motion equation and a spring collision equation during impact. Using Physics by Inquiry instructional (PbI) strategy, the simulation and its problem based inquiry worksheet aim to enhance learning of these two Newtonian concepts. We report results from Experimental (N=62 students) and Control (N=67) Groups in 11 multiple-choice questions pre- and post-tests, conducted by three teachers in the school. Results suggest, at 95% confidence level, significant improvement for concept of Newton’s 1