Quantum physics focuses on the behavior of subatomic particles and introduces concepts that differ significantly from classical physics, which is typically emphasized in high school curricula. Students studying quantum physics can expect to encounter complex theories and mathematical frameworks, requiring a solid understanding of calculus, often up to multivariable calculus. The difficulty level is generally higher than that of classical physics, and laboratory work may include experiments like the photoelectric effect, although access to advanced equipment like particle accelerators is limited in high schools. The transition from classical to quantum physics involves grappling with abstract concepts that challenge traditional notions of physics.