WILLOW RUN COMMUNITY SCHOOLS 2171 East Michigan Avenue Ypsilanti, MI 48198 (734) 481-8200 How do things move? Objects move because of forces.  A force is a push or a pull. Brain Pop Movies:  Motion & Forces Rotorcraft Adventures Construction Equipment Science Monster:  Gravity & Inertia Deap Sea Machines Simple Machines Design a Roller Coaster Simple Machines Made Simpler Kikki's Workshop Technology 1900 Let's Fly NASA Kids Newton's Laws Physics Classroom Rollercoasters