Simple Machines

Students explore Simple Machines with twelve hands-on activities and the Delta Science Reader. By measuring force as they lift, push, and pull loads, your class will determine the mathematical relationship between force and work. Students build and/or operate classroom versions of the six simple machines: lever, wheel and axle, pulley, inclined plane, wedge, and screw. They investigate how (and how much) each one makes work easier by magnifying, modifying, transferring, or changing the direction of the applied force. By calculating such factors as gear ratios and the negative effects of friction, students discover the tradeoff between force and distance. Students also identify and examine household or other everyday simple machines.