Hypathia incorrectly guesses how a sack will fall when it is dropped on a moving boat. She observes that the sack behaves as if the boat was stationary. Hypathia believes the same principle can be applied to the Earth: it is moving around the Sun without us realizing it.
A fight breaks out, and Isaac Newton watches the quarrel and draws conclusions about forces based on his observations. Each boy is considered a mass, and each of their pushes is a force. At the end of the scuffle, Newton labels his conclusions "The Laws of Motion." This clip is an excellent depiction of Newton's laws of motion in a real-world context.
Dr. Shini Somara introduces physics and the concept of motion in a straight line, or one dimension. She defines key terms such as time, position, velocity, and acceleration then provides real-world scenarios involving these concepts to make them more concrete.
Sheldon explains how he uses a toy train and a ball to prove Newton's first law of motion. As the train moves, he pushes a button to propel the ball in the air. The ball lands in the same spot on the train where it was propelled. The ball moves at a constant velocity in an inertial frame of reference.