https://www.khanacademy.org/science/ms-physics/x1baed5db7c1bb50b:energy/x1baed5db7c1bb50b:conservation-of-energy/a/changes-in-energy 2026-03-11T02:10:33.919821759Z Conservation of energy Apply your knowledge of kinetic and potential energy to investigate energy transfers and transformations. Understand the law of conservation of energy and how it applies in different scenarios. article https://www.khanacademy.org/science/ms-physics/x1baed5db7c1bb50b:explore-physics-through-simulations/x1baed5db7c1bb50b:explore-conservation-of-energy-through-simulations/e/phet-simulation-exploring-conservation-of-energy 2026-04-07T22:23:57.656416987Z PhET challenge: Conservation of energy Use a PhET simulation to test your knowledge of conservation of energy with this set of free, standards-aligned practice questions. Emily Cizmas exercise