Explore work and energy concepts with a real-world example: a crashing car analysis! In this physics tutorial, we break down kinetic energy, work done, and energy transfer during a collision. Using ...

Weird effect: Have you ever noticed that screwdrivers in your toolbox can seemingly change form? (Courtesy: iStock/M_a_y_a) As a new decade dawns, you will be thrilled to learn that I have come across ...

In the Fall I'll be starting teaching again, after a semester away on sabbatical and then enjoying teaching relief during my first semester at Penn. I'll be teaching a course that I truly love, and ...

Some real-world phenomena look like they break the laws of physics—until you understand what’s actually happening. This video explores five examples that confuse people because they defy everyday ...