Ib tug neeg tom qab ntawd siv lub zog ntawm qhov kawg ntawm tus crow bar nqa pob zeb. Lub zog ntawm hom tau piav qhia ntawm no yogthawj chav kawm qib vim tias qhov fulcrum tau muab tso rau ntawm lub zog siv (lub zog siv zog) thiab cov khoom yuav tsum tau txav mus los (lub zog tsis kam). … Ib tug nutcracker yog ib qho piv txwv ntawm qib thib ob.
Qeb dab tsi yog nutcracker?
Nutcrackers kuj yog ib qho piv txwv ntawm qib thib ob. Nrog rau peb chav kawm levers kev siv zog yog nruab nrab ntawm lub load thiab lub fulcrum, piv txwv li nyob rau hauv barbecue tongs. Lwm qhov piv txwv ntawm cov qib thib peb yog tus pas nrig, tus pas nuv ntses thiab woomera.
Yuav ua li cas lub tshuab yooj yim yog nutcracker?
A nutcracker yog ib ob qib ntawm chav kawm no. Peb-chav levers muaj lub dag zog nyob nruab nrab ntawm lub load thiab lub fulcrum (FEL). Tes siv lub dag zog ib txwm taug kev luv luv thiab yuav tsum siab tshaj qhov load.
chav kawm 1 qib piv txwv yog dab tsi?
Piv txwv suav nrog pom-saws, crow bars, rauj claws, txiab, pliers, thiab nkoj oars. Ntxawm tus rauj, nrog rau tus tuav, yog Chav Kawm 1 Lever. Thaum rub tus ntsia hlau, tus ntsia hlau yog qhov Load, Fulcrum yog lub taub hau ntawm rauj, thiab lub zog lossis kev siv zog yog nyob rau lwm qhov kawg ntawm tus kov, uas yog Beam.
Qeb thawj qib hu ua dab tsi?
taag point, hu ua a fulcrum. First Class Lever txhais: Lub fulcrum yog nyob nruab nrab ntawm cov tswv yimquab yuam thiab load.
