Learn how to calculate the vector change in momentum of a bouncing ball in this physics tutorial! This video explains the concepts of momentum, direction, and collisions step by step, making it easy ...

Learn how to solve projectile motion equations using vectors in this step-by-step physics tutorial! This video explains how to break motion into components, calculate displacement and velocity, and ...

How do you create an inquisitive mind? Simply accumulating knowledge isn't good enough, suggest Lei Bao and colleagues (Am. J. Phys. 77, 1118–1123; 2009). Specifically, the teaching and learning of ...

Michelle Obama went from the South Side of Chicago to one of the most influential women in history. Now she’s sharing how she did it.