https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:thermal-properties-of-matter/x0e04e0cb682fb793:relationsgip-between-motion-of-particles-and-temperature/v/changing-states-of-matter-part-1-ur 2025-08-07T23:35:51.501752344Z Changing States of Matter : Part 1 Created by Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Changing States of Matter : Part 1 Created by Khan Academy https://cdn.kastatic.org/ka-youtube-converted/NTi1aNW-iRU.mp4/NTi1aNW-iRU.mp4 413 Phase changes https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:thermal-properties-of-matter/x0e04e0cb682fb793:relationsgip-between-motion-of-particles-and-temperature/v/changing-states-of-matter-part-2-pk 2025-12-18T00:30:56.558401705Z Changing States of Matter : Part 2 Cerated by Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Changing States of Matter : Part 2 Cerated by Khan Academy https://cdn.kastatic.org/ka-youtube-converted/dtp9wEXYi24.mp4/dtp9wEXYi24.mp4 361 Phase changes https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:thermal-properties-of-matter/x0e04e0cb682fb793:relationsgip-between-motion-of-particles-and-temperature/e/change-of-state 2025-10-30T05:03:10.864061064Z Change of state Let's do some questions! vibhor exercise https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:thermal-properties-of-matter/x0e04e0cb682fb793:relationsgip-between-motion-of-particles-and-temperature/e/interconversion-of-states-of-matter 2026-04-20T07:20:46.893989224Z Interconversion of states of matter Lets answer some questions. Shankar R exercise https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:thermal-properties-of-matter/x0e04e0cb682fb793:relationsgip-between-motion-of-particles-and-temperature/v/phase-changes 2025-02-13T17:59:34.347326855Z Phase changes Phase changes are physical changes in which a substance shifts from one state of matter to another, like ice melting into water or water boiling into steam. These transformations depend on two factors: particle attractions and kinetic energy. Heating a substance increases particle motion, potentially overcoming attractions to change phases. Each substance has unique melting, freezing, and boiling points due to these forces. Mahesh Shenoy video https://cdn.kastatic.org/ka_thumbnails_cache/caa39295-8825-4f0c-8086-c97aa37e714f_1280_720_base.png Phase changes Phase changes are physical changes in which a substance shifts from one state of matter to another, like ice melting into water or water boiling into steam. These transformations depend on two factors: particle attractions and kinetic energy. Heating a substance increases particle motion, potentially overcoming attractions to change phases. Each substance has unique melting, freezing, and boiling points due to these forces. https://cdn.kastatic.org/ka-youtube-converted/Aeddl02frBE.mp4/Aeddl02frBE.mp4 458 Phase changes https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:thermal-properties-of-matter/x0e04e0cb682fb793:relationsgip-between-motion-of-particles-and-temperature/e/understand-phase-changes 2026-04-29T07:20:45.495372596Z Understand: Phase changes Check your understanding of phase changes in this set of free, standards-aligned practice questions. Allen Ruch exercise https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:thermal-properties-of-matter/x0e04e0cb682fb793:relationsgip-between-motion-of-particles-and-temperature/e/apply-phase-changes 2026-04-29T07:20:45.495372596Z Apply: Phase changes Apply your understanding of phase changes in this set of free, standards-aligned practice questions. Allen Ruch exercise https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:thermal-properties-of-matter/x0e04e0cb682fb793:relationsgip-between-motion-of-particles-and-temperature/v/sublimation-ur 2025-08-07T23:35:51.501752344Z Sublimation Created by Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Sublimation Created by Khan Academy https://cdn.kastatic.org/ka-youtube-converted/t-2oO4Y7pxk.mp4/t-2oO4Y7pxk.mp4 212 Phase changes