Relacionar Columnas LET'S SIMPLE MACHINESVersión en línea Know machines and ttheir function. por maria backer baraza 1 We use lever 2 We use an inclined plane 3 We use a pulley 4 We use wheel and axle 5 We use screw 6 We use gears 7 We use a wedge to change the direction of movement and/or increase the output speed or torque. to cut objects. to move or lift objects. to push objects up or down. to reduce friction of the moving vehicle with the ground. to hold objects together — such as wood — and to position objects. to lift objects.