https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:energy-work-and-power/x0e04e0cb682fb793:introduction-to-energy/a/kinetic-energy 2026-04-27T10:10:46.754795089Z Learn and try: Kinetic energy Learn about kinetic energy. Use interactive graphs to discover how an object's kinetic energy depends on its mass and speed. article https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:energy-work-and-power/x0e04e0cb682fb793:conservation-fo-energy/a/changes-in-energy 2026-04-27T10:10:46.754795089Z Learn and try: 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:teacher-resources/x1baed5db7c1bb50b:hands-on-physics-activities/a/activity-why-doesn-t-a-basketball-bounce-forever 2026-02-27T18:00:31.886851552Z Activity: Why doesn't a basketball bounce forever? Make science come alive in your classroom with this free hands-on activity aligned to middle school standards. article https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:energy-work-and-power/x0e04e0cb682fb793:conservation-fo-energy/a/activity-how-do-engineers-design-roller-coasters 2026-01-26T00:30:32.82909804Z Activity: How do engineers design roller coasters? Make science come alive in your classroom with this free hands-on activity aligned to high school standards. article