Newton's second law | Middle school physics | Khan Academy

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/science/ms-physics Want to explore more? Check out the full middle school physics playlist here: https://www.youtube.com/playlist?list=PLSQl0a2vh4HC-daPugvP8kL_zuE3u_3Zr If the forces on an object are unbalanced (the net force is not zero), the object will accelerate. How much the object accelerates depends on two factors: the strength of the net force, and the mass of the object. We can conduct an experiment to determine how acceleration depends on these two factors separately. If we keep the object's mass constant and increase the net force, we find that the object accelerates more. If we keep the net force constant and increase the object's mass, we find that the object accelerates less. Sections: 00:00 - Intro 00:45 - Measuring net force and acceleration 03:08 - Independent, dependent, and controlled variables 04:21 - Effect of net force on acceleration 07:19 - Effect of mass on acceleration 08:55 - Newton's second law ------------------ Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc