Homework questions relating to mass and inertia, measurements of inertia, mass and volume, units, effect of gravity, Newton's first law, and the relationship of mass and inertia were used as a review and starting point for the class. A series of demonstrations and examples was used to show that objects move at the same speed as their environment. Example,stand up facing front on a train traveling 70 mph, and then jump up. Does the back door of the train hit you? Why not. Flip a coin while riding in a car, does the coin fly to the back seat? Why not.