Let's think now about the concept of motion and in particular, the idea of speed. What is speed? Well, let's think about an example. Let's say that you're going to go from home to school ...

Let's think now about the concept of motion and in particular, the idea of speed. What is speed? Well, let's think about an example. Let's say that you're going to go from home to school ...

It begins with a cartoon of a sleepy locomotive reluctant to move, transitioning into live-action footage of a steam train starting up. Various scenes illustrate Newton’s laws of motion, including a ...