Science 8 Work, Power & Simple Machines Vocabulary Flashcards • • • • Print pages back to back or paste back to back Cut them out. Match the term with the correct definition Turn them over. If the shapes match you have the correct answers. PB 2007 Machine Work Power Mechanical Advantage A device that makes work easier by changing the size or the direction of force Occur when a force is used to move an object through a distance Comparison of how much work a machine can do in a unit of time How many times a simple machine multiplies the force put into it Wedge Pulley Wheel & Axle Inclined Plane Simple machine consisting of an inclined plane that moves Simple machine consisting of one or more wheels with a rope wrapped around them Simple machine made of larger circle rotation around smaller circle Simple machine that consists of a flat, sloping surface Lever Simple machine made of a long rigid bar that rests on and turns around a support Screw Simple machine consisting of an inclined plane wrapped around a cylinder