Mienzaniso gumi nemiviri yeMafungu Akachinjika
1. Muedzo wewave inotenderera inopararira patambo ndewekuti y = 3 sin π (120 t – 0,4 x). Kana x na y vari mu cm uye t vari mumasekondi, saka wavelength iri ….
A. 1 cm
B. 2 cm
C. 3 cm
Kureba 4 cm
E. 5 cm
Kuyerwa kana kuverenga mufizikisi kunobva pahukuru hudiki hwezvimedu, senge huremu hweerekitironi, kusvika pahukuru hukuru, senge huremu hwenyika. Kunyora mhedzisiro yekuyerwa kwezvinhu zvikuru, semuenzaniso huremu hwenyika hunosvika 6,000,000,000,000,000,000,000,000 kg kana mhedzisiro yekuyerwa kwezvimedu zvidiki, semuenzaniso huremu hweerekitironi hunosvika 0,000,000,000,000,000,000,000,000,000,000,000,000,000.911 kg inoda nzvimbo yakakura uye inowanzonyorwa zvisirizvo. Kuti tikunde dambudziko iri, tinogona kushandisa notation yesainzi.
Kuongororwa kwezviyero mufizikisi kunogona kushandiswa kutarisa kururama kwezvinobva muequation. Mukuongorora kwezviyero, huwandu hwezvinhu zvine zviyero zvakafanana chete ndihwo hunogona kuwedzerwa, kubviswa, kana kuenzana. Kana huwandu hwezvinhu zvine zviyero zvakafanana kana zvakasiyana hukawedzerwa, kupatsanurwa, kana kukwidzwa kusvika pasimba, zviyero zvehuwandu ihwohwo zvinowedzerwawo, kupatsanurwa, kana kukwidzwa kusvika pasimba.
Mienzaniso mishanu yeMutemo waBernoulli
1 P1 dhani v1 ndiko kumanikidzwa uye kumhanya kwemhepo iri pamusoro pebapiro, P2 dhani v2 ndiyo kumanikidzwa uye kumhanya kwemhepo iri pasi pebapiro. Kuti ndege ikwire, mamiriro acho ezvinhu...
A. P1 =P2 dhani v1 = v2
B. P1 < P2 dhani v1 > v2
C.P1 < P2 dhani v1 < v2
D.P1 > P2 dhani v1 > v2
E.P1 > P2 dhani v1 < v2
Kukurukurirana:
Mienzaniso 8 yeZvifananidzo Zvakakosha
1. Kureba kwetambo inoyerwa nemudzidzi i 0,20350 m. Huwandu hwenhamba dzakakosha dziri muchiyero ndehwe…
A. mbiri
B. nhatu
C. mana
D. shanu
E. nhanhatu
Kukurukurirana:
Mhinduro chaiyo ndiD. Manhamba akakosha ndi2, 0, 3, 5, 0. Nhamba 0 iri pamberi pepoindi yedesimali haisi nhamba ikakosha.
Chimwe chezvinhu zvakakosha zvechinhu i density, inozivikanwawo se kuwandanya. Izwi rinotonhorera nderekuti density. Density inhamba yehukuru nehukuru hwechinhu. Panyaya yemasvomhu, zvakanyorwa kuti:
ρ = m/V
(ρ verenga "rho") ibhii rechiGiriki rinowanzo shandiswa kuratidza density, m zvinoreva huremu uye V zvinoreva vhoriyamu.
Sisitimu yepasi rose yemayuniti kuwanda makirogiramu pa cubic mita (kg/m2)3). Kune mayuniti eCGS, kureva masendimita, magiramu, nemasekonzi, density unit inoratidzwa mumagiramu pa cubic centimeter (gr/cm3).
Wakambozvibvunza here kuti, Sei zvinhu zvakasimba zvichiyangarara pamusoro pemvura? Unoisa koki mumvura uye koki inoyangarara. Kune rumwe rutivi, kana ukaisa tsono yekusonesa kana dombo mumvura, tsono yekusonesa kana dombo inonyura, kunyangwe saizi yetsono kana dombo iri diki pane koki. Ndezvipi zvinhu zvinokonzera chinhu chakasimba kuyangarara pamusoro pemvura?
Simba renyika rinokwevera pasi rinoshanda pachinhu chimwe nechimwe chiri pamusoro penyika, saka chinhu chimwe nechimwe chine huremu chine simba regiravhiti. Kana simba rehuremu (w) rechinhu chakasimba riri diki pane simba remvura rinoyerera (F A ), saka kana chinhu chakasimba chikanyudzwa mumvura, chinhu chinosimuka choyangarara pamusoro pemvura.
Wakambozvibvunza here kuti sei kuchitonhora pamusoro pegomo? Makomo kana nzvimbo dzakakwirira anowanzo kutonhora kupfuura mhepo iri munzvimbo dzakaderera kana pedyo negungwa. Kana nzvimbo yakakwira pamusoro pegungwa, mhepo inotonhora ipapo. Mhepo iri pamusoro pegomo inofanira kudziya nekuti iri pedyo nezuva. Sei kuchitonhora pamusoro pegomo?
Zvinoenderana nemutemo waNewton wegravitational , hukuru hwesimba regiravhiti rePasi panzvimbo hunoenderana nechikamu chedaro riri pakati pepakati pePasi nenzvimbo iyoyo. Saka kana nzvimbo iri kure nepakati pePasi, simba regiravhiti rePasi panzvimbo iyoyo rinenge diki. Nemamwe mashoko, kana nzvimbo iri pamusoro pegungwa, simba regiravhiti rePasi panzvimbo iyoyo rinenge diki. Saka simba regiravhiti rePasi panzvimbo iri pedyo negungwa kana munzvimbo dzakaderera rakakura kupfuura simba regiravhiti rePasi riri pamusoro pegomo kana pamusoro pegomo.
Ita bvunzo inotevera.
Tungamira huremu padhinamometer wonyora huremu hwakaratidzwa nedhinamometer. Zvadaro, isa huremu mumvura wonyora huremu hwakaratidzwa nedhinamometer.
Enzanisa zviyero zvako. Huremu hwacho hunokura here kana huri mumvura kana kuti husiri mumvura? Sei? Kurukura mhedzisiro yechiedzo ichi nemumwe wako.
Simba rakajairika isimba rinobata zvinhu zviri kubata, uko divi resimba racho rakatarisa kune denderedzwa rekubatana. Chiratidzo charo ndiN uye system yepasi rose yemayuniti i kg m/s 2 kana Newton.
Simba N panzvimbo yakati sandara
N isimba rinoitwa pasi padanda, N' isimba rinoitwa nedanda riri pasi. w isimba rinokwevera pasi rinoshanda padanda kana huremu hwedanda. N naN' isimba rekuita-kuita, nepo N naw asiri masimba ekuita-kuita.