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