https://www.khanacademy.org/science/ms-physics/x1baed5db7c1bb50b:motion-and-forces/x1baed5db7c1bb50b:forces/v/forces 2025-06-20T17:00:10.254290374Z Forces A force is a push or a pull. Types of contact forces include the normal and friction forces. Types of non-contact forces include the gravitational, electric, and magnetic forces. When two or more forces act on an object in the same direction, their effects add. In opposite directions, their effects subtract. Adding and subtracting all of the individual forces this way gives the net force on the object. If the net force is zero, the forces are balanced. If not zero, the forces are unbalanced. Mahesh Shenoy video https://cdn.kastatic.org/ka_thumbnails_cache/c12eb1bc-2efa-437c-a24e-271bfe5b4c6c_1280_720_base.png Forces A force is a push or a pull. Types of contact forces include the normal and friction forces. Types of non-contact forces include the gravitational, electric, and magnetic forces. When two or more forces act on an object in the same direction, their effects add. In opposite directions, their effects subtract. Adding and subtracting all of the individual forces this way gives the net force on the object. If the net force is zero, the forces are balanced. If not zero, the forces are unbalanced. https://cdn.kastatic.org/ka-youtube-converted/emZftp_UBKs.mp4/emZftp_UBKs.mp4 434 Types of forces https://www.khanacademy.org/science/class-7-science/x0c8b40bd4b242f0b:forces-and-machine/x0c8b40bd4b242f0b:forces-its-effects-and-types/v/types-of-forces 2023-06-26T04:10:39.513125705Z Types of forces What are the different types of forces? Let's find out! Vibhor Pandey video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Types of forces What are the different types of forces? Let's find out! https://cdn.kastatic.org/ka-youtube-converted/321RIc7Pkb4.mp4/321RIc7Pkb4.mp4 543 Types of forces https://www.khanacademy.org/science/mh-grade-8-science/x0f256b8de9c7cf34:force-and-pressure/x0f256b8de9c7cf34:force/v/force-has-direction-and-magnitude 2023-07-03T13:44:16.33096147Z Force has direction and magnitude A force is made up of two things - direction and magnitude. Let's see how! Vibhor Pandey video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Force has direction and magnitude A force is made up of two things - direction and magnitude. Let's see how! https://cdn.kastatic.org/ka-youtube-converted/_F3WC9g2-x8.mp4/_F3WC9g2-x8.mp4 75 Types of forces https://www.khanacademy.org/science/class-7-science/x0c8b40bd4b242f0b:forces-and-machine/x0c8b40bd4b242f0b:forces-its-effects-and-types/e/force-its-effects-and-types 2026-04-06T02:41:58.374508961Z Force, its effects and types Let's solve some questions on force, its effects and types Vibhor Pandey exercise https://www.khanacademy.org/science/class-7-science/x0c8b40bd4b242f0b:forces-and-machine/x0c8b40bd4b242f0b:uses-and-disadvantages-of-friction/e/uses-and-disadvantages-of-friction 2026-03-31T02:49:16.891210422Z Uses and Disadvantages of Friction Let's solve some questions on uses and disadvantages of friction Vibhor Pandey exercise https://www.khanacademy.org/science/ms-physics/x1baed5db7c1bb50b:non-contact-interactions/x1baed5db7c1bb50b:gravitational-force/v/gravitational-force 2025-06-20T17:00:10.254290374Z Gravitational force Objects with mass exert gravitational forces on each other. Gravitational forces are always attractive. Gravity is a non-contact force that does not require objects be touching in order to act. Instead, the gravitational force can be modeled as acting through a gravitational field. The strength of the gravitational forces two objects exert on each other depends on the masses of both objects, as well as the distance between their centers of mass. Mahesh Shenoy video https://cdn.kastatic.org/ka_thumbnails_cache/5c4f03d6-491b-4a7a-8df2-d28fd6b0890b_1280_720_base.png Gravitational force Objects with mass exert gravitational forces on each other. Gravitational forces are always attractive. Gravity is a non-contact force that does not require objects be touching in order to act. Instead, the gravitational force can be modeled as acting through a gravitational field. The strength of the gravitational forces two objects exert on each other depends on the masses of both objects, as well as the distance between their centers of mass. https://cdn.kastatic.org/ka-youtube-converted/R0XFqHBZfHc.mp4/R0XFqHBZfHc.mp4 489 Types of forces https://www.khanacademy.org/science/ms-physics/x1baed5db7c1bb50b:non-contact-interactions/x1baed5db7c1bb50b:gravitational-force/e/understand-gravitational-forces 2025-12-19T15:30:45.999152142Z Understand: gravitational force Check your understanding of gravitational force in this set of free practice questions. Khan Academy exercise https://www.khanacademy.org/science/ms-physics/x1baed5db7c1bb50b:non-contact-interactions/x1baed5db7c1bb50b:electric-and-magnetic-forces/v/electric-force 2025-06-20T17:00:10.254290374Z Electric force Objects with charge exert electric forces on each other. Like charges repel each other, and opposite charges attract each other. The electric force is a non-contact force that does not require objects be touching in order to act. Instead, the electric force acts through an electric field. The strength of the electric forces two objects exert on each other depends on the charges of both objects, as well as the distance between them. Mahesh Shenoy video https://cdn.kastatic.org/ka_thumbnails_cache/4010b695-0a3a-45eb-b440-322b134d7693_1280_720_base.png Electric force Objects with charge exert electric forces on each other. Like charges repel each other, and opposite charges attract each other. The electric force is a non-contact force that does not require objects be touching in order to act. Instead, the electric force acts through an electric field. The strength of the electric forces two objects exert on each other depends on the charges of both objects, as well as the distance between them. https://cdn.kastatic.org/ka-youtube-converted/nIGEp5x0Ab4.mp4/nIGEp5x0Ab4.mp4 452 Types of forces https://www.khanacademy.org/science/ms-physics/x1baed5db7c1bb50b:non-contact-interactions/x1baed5db7c1bb50b:electric-and-magnetic-forces/v/magnetic-force 2025-06-20T17:00:10.254290374Z Magnetic force Permanent magnets and electric currents produce magnetic fields. All magnets, no matter how small, have both a north and south pole. Like poles repel each other, and opposite poles attract each other. The magnetic force is a non-contact force that does not require objects be touching in order to act. Instead, the magnetic force acts through a magnetic field. The strength of the magnetic forces two objects exert on each other depends on the strengths of the magnets, their orientations, and the distance between them. Mahesh Shenoy video https://cdn.kastatic.org/ka_thumbnails_cache/9972c39c-7a48-4431-ac43-b24cdb1c60e8_1280_720_base.png Magnetic force Permanent magnets and electric currents produce magnetic fields. All magnets, no matter how small, have both a north and south pole. Like poles repel each other, and opposite poles attract each other. The magnetic force is a non-contact force that does not require objects be touching in order to act. Instead, the magnetic force acts through a magnetic field. The strength of the magnetic forces two objects exert on each other depends on the strengths of the magnets, their orientations, and the distance between them. https://cdn.kastatic.org/ka-youtube-converted/u-3cEw0uDC0.mp4/u-3cEw0uDC0.mp4 424 Types of forces https://www.khanacademy.org/science/ms-physics/x1baed5db7c1bb50b:non-contact-interactions/x1baed5db7c1bb50b:electric-and-magnetic-forces/e/understand-magnetic-forces 2026-03-31T02:49:16.891210422Z Understand: electric and magnetic forces Check your understanding of electric and magnetic forces in this set of free practice questions. Khan Academy exercise