Ukama Huri Pakati PeMisa Nehuremu
Muhupenyu hwezuva nezuva, mazwi ekuti "huremu" uye "huremu" anowanzo shandiswa zvakafanana. Zvisinei, mune zvesainzi, mazwi maviri aya ane musiyano wakakura, uye zvakakosha kunzwisisa misiyano iyi kuti ushandise pfungwa dzefizikisi nemazvo. Chinyorwa chino chichaongorora tsananguro dzehuremu nehuremu, hukama hwazvo, uye mashandisirwo azvo chaiwo.
Tsanangudzo yeMisa
Huremu inzira yekuyera huremu hwechinhu chisina simba, kureva kuti, tsika yacho yekuchengetedza mamiriro acho ekufamba (kungave pakuzorora kana kufamba nespeed isingachinji). Huremu hunoonekwawo sehuwandu hwezvinhu zviripo muchinhu. Chiyero chepasi rose (SI) chehuremu ikirogiramu (kg).
Huremu huwandu hunoratidza kukura kwechinhu, zvichireva kuti hune hukuru chete uye hahuna kwahunoenda. Kusiyana nehuremu, hunosiyana zvichienderana nenzvimbo yechinhu, huremu hwechinhu hunoramba hwakafanana kwese kwese muchadenga, chero bedzi chinhu chacho chisingarasikirwe kana kuwana chinhu.
Tsanangudzo yeHuremu
Kusiyana nehuremu, huremu isimba rinoita basa pachinhu nekuda kwesimba rinokwevera pasi. Huremu hunoyerwa muchikamu cheSI chesimba, chinonzi newton (N). Fomura yekuverenga huremu ndeiyi:
\[ \text{Weight} = \text{Mass} \times \text{Acceleration} \text{gravity} \]
Pamusoro pePasi, kukurumidza kunokonzerwa negiravhiti kunenge \(9.81 \, \text{m/s}^2\). Saka, huremu hwechinhu chiri paPasi hunogona kuonekwa nekuwedzera huremu hwacho nehukuru ihwohwo.
Chinhu chimwe chakakosha chekurangarira apa ndechekuti huremu inhamba yevector. Izvi zvinoreva kuti huremu hune gwara, kureva kuti pakati pegiravhiti (Pasi, gwara iri riri pasi richienda pakati pePasi).
Ukama Huri Pakati PeMisa Nehuremu
Hukama huripo pakati pehuremu nehuremu hunogona kuonekwa kubva pafomura yekare yehuremu. Kana tikaziva huremu hwechinhu uye kukurumidza kwegiravhiti panzvimbo iyoyo, tinogona kuziva huremu hwechinhu chacho.
Zvisinei, nekuti kukurumidza kunokonzerwa negiravhiti kunogona kusiyana munzvimbo dzakasiyana, huremu hwechinhu hunogonawo kusiyana zvichienderana nekuti chiri kupi. Semuenzaniso, huremu hwechinhu chiri paNyika huchasiyana nehuremu hwacho pamwedzi, nekuti kukurumidza kunokonzerwa negiravhiti pamwedzi (~1.625 \(\text{m/s}^2\)) kudiki pane kuri paNyika.
Kunyange zvazvo huremu huchigona kuchinja, huremu hwechinhu hucharamba hwakafanana kungave kuri paNyika, pamwedzi, kana chero kupi zvako muchadenga, tichifunga kuti huremu hwechinhu hahuchinji panyama.
Mhedzisiro yeGravity munzvimbo dzakasiyana-siyana
Sezvambotaurwa, simba rinokwevera zvinhu pasi (gravity) rinokanganisa huremu hwechinhu zvichienderana nenzvimbo yacho. Kuti titsanangure pfungwa iyi, ngatitarisei mienzaniso chaiyo munzvimbo dzakasiyana:
1. Pasi Pano:
– Semuenzaniso, chinhu chine huremu hwe10 kg. Kukurumidza kunokonzerwa negiravhiti paNyika ndeye \(9.81 \, \text{m/s}^2 \).
– Huremu hwechinhu chiri pamusoro penyika ndi \(10 \text{kg} \times 9.81 \text{m/s}^2 = 98.1 \text{N}\).
2. Pamwedzi:
– Nechinhu chimwe chete ichocho, kukurumidza kunokonzerwa nekukwevera pasi pamwedzi kunenge \(1.625 \text{m/s}^2\).
– Huremu hwechinhu chiri pamwedzi ndi \(10 \text{kg} \times 1.625 \text{m/s}^2 = 16.25 \text{N}\).
3. Papuraneti Mars:
– Kukurumidza kunokonzerwa negiravhiti paMars kunenge \(3.71 \text{m/s}^2\).
– Huremu hwechinhu chiri paMars ndi \(10 \text{kg} \times 3.71 \text{m/s}^2 = 37.1 \text{N}\).
Sezvatinoona, zvinhu zvine huremu hwakafanana zvine huremu hwakasiyana panzvimbo dzakasiyana nekuda kwekusiyana kwekumhanya kwegiravhiti panzvimbo imwe neimwe.
Kukosha Kwekunzwisisa Musiyano Pakati PeMisa Nehuremu
Kunzwisisa musiyano uripo pakati pehuremu nehuremu kune zvakawanda zvinobatsira, mune zvesainzi uye muhupenyu hwezuva nezuva. Heano mamwe ezvikonzero nei:
1. Ndege neMuchadenga:
– Mukugadzira ndege nemaroketi, zvakakosha kuverenga nemazvo huwandu hwemafuta nezvinhu zvinotakura. Mumabasa emuchadenga, kunzwisisa kuti simba rinokwevera zvinhu pasi rinobata sei huremu pamapuraneti akasiyana kunobatsira pakuronga nekufamba.
2. Kumanikidzwa kwemvura uye kudzika kwayo:
– Musainzi yezvemugungwa, kuziva huremu (kwete huremu chete) hunoshandiswa nemvura pakadzika kwakakosha pakugadzira ngarava dzemugungwa nemidziyo yekunyura.
3. Kuedza uye Kugadzirisa:
– Zvishandiso zvekuyera nekuyera, zvakaita sezviyero, zvakagadzirirwa kuyera huremu asi zvinowanzo shandurwa kuita huremu zvichibva pakukweva kwenzvimbo. Izvi zvakakosha mumarabhoritari nemumaindasitiri.
4. Tsvagiridzo yeGeology nePasi:
– Kuziva huremu uye kuti shanduko mugiravhiti yemunzvimbo inogona kukanganisa sei huremu hwechinhu kunobatsira mukutsvaga nezve geology, zvakaita sekuyera munda wegiravhiti wePasi.
Pfungwa yeKuenderana Kwezvinhu
Mufizikisi yekare, huremu ipfungwa iri nyore. Zvisinei, mudzidziso yaAlbert Einstein yerelativity, pfungwa yehuremu inova yakaoma. Dzidziso yerelativity inoisa mutsauko pakati pehuremu hwekuzorora nehuremu hwe relativistic. Huremu hwekuzorora huremu hwechinhu chiri pazororo kana tichienzanisa nemuoni, nepo huremu hwe relativistic huremu hwechinhu chiri kufamba kana tichienzanisa nemuoni.
Panyaya ye relativity, huremu hwechinhu hunowedzera sezvo kumhanya kwacho kuri kusvika pakumhanya kwechiedza. Izvi zvinoreva kuti chinhu chinofamba nekukurumidza chichava nehuremu hwakakura kupfuura chinhu chiri pachigaro.
Kuedza Kunoshanda
Sekuyedza kunoshanda murabhoritari kana munzvimbo yedzidzo, musiyano uripo pakati pehuremu nehuremu unogona kudzidziswa kuburikidza nekuyedza kuri nyore. Semuenzaniso, kushandisa chiyero chechitubu kuyera huremu hunosiyana negiravhiti, uye kushandisa chiyero chechiyero kuyera huremu hunoramba hwakafanana.
Vadzidzisi vanogona kutora muenzaniso mumwe chete kuenda kunzvimbo dzakasiyana-siyana, kana kushandisa modhi inotevedzera nzvimbo dzakasiyana dzesimba regiravhiti, senge muchina wehuremu une chitubu. Izvi zvinogona kuratidza mutsauko muhuremu panzvimbo dzakasiyana nepo huremu huchiramba hwakafanana.
Mhedziso
Kunzwisisa hukama huripo pakati pehuremu nehuremu kwakakosha pakudzidza fizikisi uye mashandisirwo ayo muhupenyu hwedu hwezuva nezuva. Huremu chiyero chehuwandu hwezvinhu zviri muchinhu uye hachichinji zvichienderana nenzvimbo yacho. Panguva imwecheteyo, huremu isimba rinokwevera zvinhu pasi pahuremu uye rinoshanduka zvichienderana nekuti chinhu chacho chiri kupi.
Kudzidza kusiyana uku kunotibatsira mukushandiswa kwezvinhu zvakasiyana-siyana zvesainzi netekinoroji, kusanganisira ndege, ruzivo rwegungwa, uye geology. Kunzwisisa uku kwakakoshawo mukuyedzwa kwerabhoritari nedzidzo, zvichipa hwaro hwakakosha kuvadzidzi nenyanzvi muzvikamu zvakasiyana-siyana.
