Olympic gold medalist Wilma Rudolph once said, “Never underestimate the power of dreams and the influence of the human spirit. We are all the same in this notion: The potential for greatness lives ...

We define and explain mathematically through multiple example problems. Segment 4E: Gravitational Potential and Kinetic Energy Gravitational potential energy and kinetic energy are defined and ...

We walk here, we walk there, we walk everywhere. Maybe you’re headed to work or to lunch in a busy city. You’re expending energy, and the exercise is good for you. But what if, on top of that, we ...

JONNY NELSON: Energy. There are lots of different types and lots of different ways of storing it. Chemical energy in a sparkler, elastic potential energy that fires a toy into the air, and many, many ...

This resource is suitable for energy and sustainability topics for primary school learners. Aw, he's always sleepy after a walk… but the potential is there. See, energy can't be created or destroyed.

Source: NOVA: "Secrets of Lost Empires II: Medieval Siege" This media asset was adapted from NOVA: "Secrets of Lost Empires II: Medieval Siege" In medieval times, one of the most fearsome weapons was ...

Suppose we consider the incline to be smooth. In this case, there is no work done on the system by non-conservative forces. Consider the simulation results below of the block sliding on a smooth ...

It should be clear that our world runs on energy. Driving your car, washing your clothes, heating your house, and even running your computer (so you can read this post)—these things all require energy ...