Relier Pairs Forces and motionVersion en ligne Forces, motion, and simple machines par Ksenia Carpenter 1 A screw 2 Motion 3 Gravity 4 Wedge 5 A wheel and axle 6 Friction 7 Ramp/Inclined plane 8 Force A simple machine that is in the shape of an inclined plane wrapped in a spiral. It is used to hold objects together. Example: used to build homes A force that pulls an object towards Earth’s surface A simple machine used to cut objects into smaller pieces A simple machine that is used to carry or move an object around more easily using less effort Example: wagon, bicycle A push or pull A simple machine that makes it easier to move heavy objects between higher and lower places. It is a flat surface that has one end higher than the other. For example, a slide on the playgrund The process of an object moving from one location to another. It changes the position of an object. A force between the surface of two objects that causes an object to speed up or slow down