Module Summary – DSM Force and Motion
Students explore Force and Motion with twelve hands-on activities and the Delta Science Reader. Students use a Delta Education tool, a push-pull meter, to measure force. They compare the relative work of moving identical objects different distances and different objects identical distances. Then students discover how simple machines make work easier by reducing the amount of force needed. They lift with levers, roll with wheels and axles, and raise with fixed and movable pulleys. They drag loads up inclined planes, separate objects with wedges, and secure wood blocks with screws. In a teacher demonstration, they see how a spring scale works. Young scientists crank gears, decrease friction, and investigate household gadgets to identify what makes them labor-saving devices.
In the Delta Science Reader Force and Motion, students read about the relationship between force, motion, and work. They discover how the six simple machines: lever, wheel and axle, pulley, inclined plane, wedge, and screw, help people do work by moving objects easier, faster, or farther. They also read about people in science "bicycle inventors" and how they created ways to make the bicycle an increasingly more complex (and safe) machine. Finally, students find out how the waterwheel works and how friction affects motion.