https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:electrostatics/x0e04e0cb682fb793:introduction-to-charges/v/intro-to-charge-ur 2025-08-07T23:35:51.501752344Z Intro to charge Created by Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Intro to charge Created by Khan Academy https://cdn.kastatic.org/ka-youtube-converted/mH4Zcu1MM4E.mp4/mH4Zcu1MM4E.mp4 406 Introduction to charges https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:electrostatics/x0e04e0cb682fb793:introduction-to-charges/e/types-of-charges 2026-04-30T05:50:52.043044628Z Charges Let's solve some problems to better understand the types of charges. Aakash Bagga exercise https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:electric-force-field-and-potential/x0e2f5a2c:electric-charge-and-electric-force/v/triboelectric-effect-and-charge 2023-09-10T17:11:17.624018169Z Triboelectric effect and charge Explore the intriguing world of electrostatics with the triboelectric effect. Understand how rubbing a balloon on your hair leads to a transfer of electrons, creating positive and negative charges. Discover the concept of charge at an atomic level, and learn how protons, electrons, and neutrons play their part. You'll become familiar with the unit of charge, the coulomb, and its relationship to the elementary unit of charge. video https://cdn.kastatic.org/googleusercontent/GFnA0YU6aUpzF0Zn3-ZhXW1oWMJPLIkPiymXgO1ZEnkL9WaX_lWuGZ2-FH6TiNhAOGSqTiOYyLNVWJCywtS1TNwM Triboelectric effect and charge Explore the intriguing world of electrostatics with the triboelectric effect. Understand how rubbing a balloon on your hair leads to a transfer of electrons, creating positive and negative charges. Discover the concept of charge at an atomic level, and learn how protons, electrons, and neutrons play their part. You'll become familiar with the unit of charge, the coulomb, and its relationship to the elementary unit of charge. https://cdn.kastatic.org/ka-youtube-converted/IDQYakHRAG8.mp4/IDQYakHRAG8.mp4 706 Introduction to charges https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:electrostatics/x0e04e0cb682fb793:introduction-to-charges/v/static_electricity 2024-07-01T11:54:52.194339821Z Static electricity Most macroscopic objects are electrically neutral most of the time. However, objects can develop a static net charge if they pick up extra electrons or lose some electrons. This can happen through friction. Objects with opposite net charges attract, and objects with like net charges repel. It's also possible for a net neutral object to be attracted to a charged object. This happens because atoms near the surface of the neutral object become polarized. Mahesh Shenoy video https://cdn.kastatic.org/ka_thumbnails_cache/a960a780-48f2-4140-8a3c-6c68243ea924_1280_720_base.png Static electricity Most macroscopic objects are electrically neutral most of the time. However, objects can develop a static net charge if they pick up extra electrons or lose some electrons. This can happen through friction. Objects with opposite net charges attract, and objects with like net charges repel. It's also possible for a net neutral object to be attracted to a charged object. This happens because atoms near the surface of the neutral object become polarized. https://cdn.kastatic.org/ka-youtube-converted/D5pJKu_QjRo.mp4/D5pJKu_QjRo.mp4 559 Introduction to charges https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:electrostatics/x0e04e0cb682fb793:introduction-to-charges/e/apply-static-electricity 2026-03-26T05:20:35.16058035Z Apply: static electricity Apply your knowledge of static electricity in this set of free practice questions. Emily Cizmas exercise