Inertial Mass vs. Gravitational Mass | Circular motion and gravitation | AP Physics 1 | Khan Academy

Keep going! Check out the next lesson and practice what you’re learning: https://www.khanacademy.org/science/a... The inertial and gravitational mass of an object might be the same number, but they tell you two different things about an object. Learn about the two concepts each type of mass describes and how to measure each independently of each other.