Assess students' ability to apply conservation of linear momentum and kinetic energy to solve one- and two-dimensional collision problems (elastic, partially elastic, and perfectly inelastic). Tasks include calculating final velocities, speeds, and scattering angles using vector decomposition, applying the coefficient of restitution or sticky-collision conditions, and verifying when kinetic energy is conserved. Problems require algebraic solution, numerical calculation, and interpretation of physical outcomes at the high-school level.