https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:energy-work-and-power/x0e04e0cb682fb793:kinetic-and-potential-energy/v/kinetic_energy 2024-07-01T11:54:52.194339821Z Kinetic energy Energy is a scalar quantity measured in joules (J). One form is kinetic energy, which is energy due to motion. An object's kinetic energy depends on its mass and its speed. Kinetic energy is defined mathematically as K=(1/2)mv^2. Any moving macroscopic object possesses kinetic energy. The particles in matter also possess kinetic energy, leading to macroscopic energy effects like thermal energy and sound. Mahesh Shenoy video https://cdn.kastatic.org/ka_thumbnails_cache/ddafe116-d030-4969-a478-613d4771e813_1280_720_base.png Kinetic energy Energy is a scalar quantity measured in joules (J). One form is kinetic energy, which is energy due to motion. An object's kinetic energy depends on its mass and its speed. Kinetic energy is defined mathematically as K=(1/2)mv^2. Any moving macroscopic object possesses kinetic energy. The particles in matter also possess kinetic energy, leading to macroscopic energy effects like thermal energy and sound. https://cdn.kastatic.org/ka-youtube-converted/eVW8X_TsBzE.mp4/eVW8X_TsBzE.mp4 710 Kinetic and Potential Energy 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:kinetic-and-potential-energy/e/apply-kinetic-energy 2026-04-01T00:34:33.165348407Z Apply: kinetic energy Apply your knowledge of kinetic energy in this set of free practice questions. Emily Cizmas exercise https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:energy-work-and-power/x0e04e0cb682fb793:kinetic-and-potential-energy/v/kinetic-energy-derivation 2025-12-18T02:00:41.510401167Z Kinetic energy derivation Created by Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Kinetic energy derivation Created by Khan Academy https://cdn.kastatic.org/ka-youtube-converted/XonQJ2eOYUQ.mp4/XonQJ2eOYUQ.mp4 714 Kinetic and Potential Energy https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:energy-work-and-power/x0e04e0cb682fb793:kinetic-and-potential-energy/e/kinetic-energy-exercises-ap1 2025-02-17T09:04:27.796626334Z Using the kinetic energy equation Practice using the equation for kinetic energy to find mass, velocity, and kinetic energy.  April Russell exercise https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:energy-work-and-power/x0e04e0cb682fb793:kinetic-and-potential-energy/v/potential_energy 2024-07-01T11:54:52.194339821Z Potential energy Potential energy exists in a system of interacting objects. The amount of potential energy depends on the objects' relative positions. If two objects attract gravitationally or electrically, potential energy increases as they get farther apart. If two objects repel electrically, potential energy increases as they get closer. Elastic and chemical potential energy are fundamentally the result of electric potential energy at the particle level. Mahesh Shenoy video https://cdn.kastatic.org/ka_thumbnails_cache/46e10d4b-da46-44f8-85c8-27c667a49882_1280_720_base.png Potential energy Potential energy exists in a system of interacting objects. The amount of potential energy depends on the objects' relative positions. If two objects attract gravitationally or electrically, potential energy increases as they get farther apart. If two objects repel electrically, potential energy increases as they get closer. Elastic and chemical potential energy are fundamentally the result of electric potential energy at the particle level. https://cdn.kastatic.org/ka-youtube-converted/aUrms3VFn0I.mp4/aUrms3VFn0I.mp4 840 Kinetic and Potential Energy https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:energy-work-and-power/x0e04e0cb682fb793:kinetic-and-potential-energy/e/apply-potential-energy 2026-04-08T00:36:09.500768563Z Apply: potential energy Apply your knowledge of potential energy in this set of free practice questions. Emily Cizmas exercise https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:energy-work-and-power/x0e04e0cb682fb793:kinetic-and-potential-energy/v/gravitational-potential-energy-derivation-pk 2025-12-18T02:00:41.510401167Z Gravitational potential energy derivation Created by Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Gravitational potential energy derivation Created by Khan Academy https://cdn.kastatic.org/ka-youtube-converted/snHbCmH8S-Y.mp4/snHbCmH8S-Y.mp4 506 Kinetic and Potential Energy https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:energy-work-and-power/x0e04e0cb682fb793:kinetic-and-potential-energy/v/work-done-by-gravity-path-independent-pk 2025-12-18T02:00:41.510401167Z Work done by gravity (path independent) Created by Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Work done by gravity (path independent) Created by Khan Academy https://cdn.kastatic.org/ka-youtube-converted/UYTnofADQNs.mp4/UYTnofADQNs.mp4 888 Kinetic and Potential Energy