Virtual particles may not be real, but they help physicists track how forces move, and allow for incredibly precise ...

Everyone knows Luke Skywalker travels to Dagobah to learn the ways of The Force (like his father before him). He trains with Jedi master Yoda. Perhaps you recall the scene where Luke does a one-armed ...

Work close workEnergy transferred by a force. Work done = force × distance moved in the direction of the force. is done when energy is transferred from one store to another. Work is also done when a ...

Physicists use the displacement formula to find an object's change in position. It sounds simple, but calculating displacement can quickly get complicated. Let's break it down using some solved ...