Nkhani za fizikisi zokhudza zochitika zachilengedwe ndi zina zotero zokhudzana ndi fizikisi.
1. Kukhuthala kwa mbale yachitsulo kumayesedwa pogwiritsa ntchito choyezera choyezera cha micrometer monga momwe zasonyezedwera pachithunzichi. Kukhuthala kwa mbale yachitsulo ndi…
A. 4,85 mm
B. 4,90 mm
C. 4,96 mm
ndi 4,98 mm
E. 5,00 mm
Tanthauzo la mafunde opingasa
Mafunde ozungulira ndi mafunde omwe njira yofalitsira imakhala yolunjika ku njira yogwedera ya chinthu chomwe chimadutsa.
Zitsanzo za mafunde opingasa
Chitsanzo cha mafunde opingasa ndi mafunde pa chingwe kapena waya. Ngati mafunde pa chingwe akuyenda kuchokera kumanzere kupita kumanja, chingwecho chimapita mmwamba ndi pansi, molunjika ku njira yomwe mafunde amafalikira.
Liwiro la kufalikira kwa mafunde likhoza kudziwika pogwiritsa ntchito njira yonseyi:
Kufotokozera kwa fomula:
v = liwiro la kufalikira kwa mafunde (mayunitsi ndi mamita/sekondi)
T = nthawi ya mafunde = nthawi yomwe mafunde amafunikira kuti ayende mu wavelength imodzi (mayunitsi ndi masekondi)
f = pafupipafupi = chiwerengero cha mafunde omwe amadutsa mfundo yomweyo pa sekondi imodzi (gawo ndi 1 / sekondi = hertz)
lambda = kutalika kwa nthawi (mayunitsi ndi mamita)
Zitsanzo 11 za Mphamvu ya Phokoso ndi Magawo a Phokoso
1. Phokoso lili ndi mphamvu ya 1 x 10-9 W / m2Kodi mulingo wa mphamvu mu ma decibel (dB) ndi wotani?
Zokambirana
Amadziwika kuti:
Ine = 1 x 10-9 W / m2
Io = 1x10 pa-12 W / m2
Funso: Mlingo wa Mphamvu (dB)?
Yankho:
Zitsanzo 25 za Mavuto a Vector
1. Mphamvu ziwiri zimalunjika wina ndi mnzake, chilichonse chili ndi kukula kwa 3 N ndi 4 N. Kukula kwa zotsatira za mphamvu ziwirizi ndi...
Zokambirana
Amadziwika kuti:
F1 = 3 N, F2 = 4 n
Funso: Kodi zotsatira za ma vector awiriwa ndi zotani?
Yankho:
Pali mavekitala awiri okha ndipo mavekitala onse awiri ndi olunjika wina ndi mnzake kotero yankho limagwiritsa ntchito njira ya Pythagorean.
Malangizo a kuyesa kowonjezera mphamvu yokoka
Zolinga za kuyeseraku :
- Ophunzira akhoza kudziwa kukula kwa mphamvu yokoka kutengera zotsatira za kuyesera.
Zida ndi zipangizo :
- Oyimitsani wotchi
– Miyala yaying'ono (mungagwiritse ntchito zinthu zina)
- Rula kapena chida choyezera kutalika
Malangizo oyesera okhudza momwe kulemera kumakhudzira kuyenda kwaulere kwa kugwa
Cholinga cha kuyeseraku :
- Ophunzira amatha kudziwa ngati kulemera kwa chinthu kumakhudza kayendedwe ka kugwa kwaulere kwa chinthucho.
Zida ndi zipangizo :
-Stopwatch
- Pepala ndi buku
Masitepe oyesera :
1. Ikani pepalalo pachikhatho cha dzanja lanu lamanzere ndi buku pachikhatho cha dzanja lanu lamanja.
2. Ikani mapepala ndi mabuku nthawi imodzi kuchokera kutalika komweko
3. Ndi chiyani chomwe chinafika pansi choyamba, pepala kapena mabuku? Lembani zotsatira za zomwe mwawona.
4. Ikani pepalalo pamwamba pa buku kenako tayani bukulo ndi pepalalo. Ndi liti lomwe limayamba kufika pansi, pepala kapena mabuku? Lembani zotsatira za zomwe mwawona.
Funso 1: Kusintha Mamita Kukhala Makilomita
Sinthani mamita 5000 kukhala makilomita.
Kukambirana:
\(5000 \, \malemba{m} = 5 \, \malemba{km}\)
Funso 2: Kusintha Ma Kilogalamu Kukhala Ma Gramu
Sinthani makilogalamu awiri kukhala magalamu.
Kukambirana:
\(3 \, \malemba{kg} = 3000 \, \malemba{g}\)
Funso 3: Kusintha Mphindi kukhala Masekondi
Sinthani mphindi 15 kukhala masekondi.
Kukambirana:
\(15 \, \malemba{mphindi} = 900 \, \malemba{masekondi}\)
Funso 4: Kusintha Maola Kukhala Mphindi
Sinthani maola awiri kukhala mphindi.
Kukambirana:
\(2 \, \maola olembedwa = 120 \, \maola olembedwa mphindi}\)
Funso 5: Kusintha Ma Miles kukhala Ma Meters
Sinthani mamailosi awiri kukhala mamita. (Mailosi 1 = mamita 1609,34)
Kukambirana:
\(2 \, \text{mil} = 3218,68 \, \text{m}\)
Funso 6: Kusintha mainchesi kukhala masentimita
Sinthani mainchesi 12 kukhala masentimita. (inchi 1 = 2,54 cm)
Kukambirana:
\(12 \, \text{inch} = 30,48 \, \text{cm}\)
Funso 7: Kusintha Magaloni kukhala Malita
Sinthani magaloni atatu kukhala malita. (Galoni imodzi = malita 3,78541)
Kukambirana:
\(3 \, \text{gallon} = 11,35623 \, \text{liter}\)
Funso 8: Kusintha Ma Miles/Ola kukhala Km/Ola
Sinthani makilomita 60 pa ola kukhala kilomita/ola. (kilomita imodzi = 1,60934 km)
Kukambirana:
\(60 \, \text{miles/our} = 96,5604 \, \text{km/our}\)
Funso 9: Kusintha Fahrenheit kukhala Celsius
Sinthani 98,6°F kukhala °C.
Kukambirana:
\(98,6°F = 37°C\)
Funso 10: Kusintha Mayadi Kukhala Mamita
Sinthani mayadi 10 kukhala mamita. (yadi imodzi = 0,9144 m)
Kukambirana:
\(10 \, \text{yard} = 9,144 \, \text{m}\)
Funso 11: Kusintha Mapaundi Kukhala Makilogalamu
Sinthani mapaundi 50 kukhala makilogalamu. (Paundi imodzi = 0,453592 kg)
Kukambirana:
\(50 \, \text{pound} = 22,6796 \, \text{kg}\)
Funso 12: Kusintha Mamililita Kukhala Malita
Sinthani ma mililita 2000 kukhala malita.
Kukambirana:
\(2000 \, \text{ml} = 2 \, \text{l}\)
Funso 13: Kusintha Masentimita Kukhala Mamita
Sinthani masentimita 300 kukhala mamita.
Kukambirana:
\(300 \, \malemba{cm} = 3 \, \malemba{m}\)
Funso 14: Kusintha Mamita/Seb kukhala Makilomita/Ola
Sinthani mamita 10/sekondi kukhala makilomita/ola.
Kukambirana:
\(10 \, \text{m/s} = 36 \, \text{km/h}\)
Funso 15: Kusintha Makilomita Kukhala Makilomita
Sinthani makilomita 5 kukhala makilomita. (Makilomita 1 = 1,60934 km)
Kukambirana:
\(5 \, \text{mile} = 8,0467 \, \text{km}\)
Funso 16: Kusintha Ma Miligramu Kukhala Ma Kilogalamu
Sinthani ma milligram 5000 kukhala ma kilogalamu.
Kukambirana:
\(5000 \, \text{mg} = 0,005 \, \text{kg}\)
Funso 17: Kusintha ma Decimeter kukhala ma Meter
Sinthani ma decimeter 20 kukhala mamita.
Kukambirana:
\(20 \, \text{dm} = 2 \, \text{m}\)
Funso 18: Kusintha Masiku kukhala Masekondi
Sinthani tsiku limodzi kukhala masekondi.
Kukambirana:
\(1 \, \text{day} = 86400 \, \text{seconds}\)
Funso 19: Kusintha Masabata Kukhala Masiku
Funso:
Sinthani masabata awiri kukhala masiku.
Kukambirana:
\(2 \, \malemba{masabata} = 14 \, \malemba{masiku}\)
Funso 20: Kusintha Mafundo kukhala Km/Ola
Funso:
Sinthani mafundo 20 kukhala km/h. (fundo limodzi = 1,852 km/h)
Kukambirana:
\(20 \, \text{knot} = 37,04 \, \text{km/h}\)
Funso 21: Kusintha Mainchesi Kukhala Mamita
Sinthani mainchesi 15 kukhala mamita. (inchi imodzi = 0,0254 m)
Kukambirana:
\(15 \, \text{inch} = 0,381 \, \text{m}\)
Funso 22: Kusintha Ma Micron Kukhala Ma Milimita
Sinthani ma microns 1000 kukhala ma millimeter.
Kukambirana:
\(1000 \, \mu\text{m} = 1 \, \text{mm}\)
Funso 23: Kusintha Makilomita/Ola kukhala Mamita/Seb
Sinthani makilomita 72/ola kukhala mamita/sekondi.
Kukambirana:
\(72 \, \malemba{km/h} = 20 \, \malemba{m/s}\)
Funso 24: Kusintha Mapainti kukhala Malita
Sinthani ma painti atatu kukhala malita. (painti imodzi = 0,473176 l)
Kukambirana:
\(3 \, \text{pint} = 1,419528 \, \text{l}\)
Funso 25: Kusintha Zaka Zambiri Kukhala Zaka
Sinthani zaka makumi atatu kukhala zaka.
Kukambirana:
\(3 \, \malemba{zaka} = 30 \, \malemba{zaka}\)
Funso 26: Kusintha Mamilimita kukhala Masentimita
Sinthani mamilimita 500 kukhala masentimita.
Kukambirana:
\(500 \, \malemba{mm} = 50 \, \malemba{cm}\)
Funso 27: Kusintha Ma Miles kukhala Ma Yard
Sinthani mtunda wa kilomita imodzi kukhala mayadi. (mtunda wa kilomita imodzi = mayadi 1760)
Kukambirana:
\(1 \, \text{mile} = 1760 \, \text{yard}\)
Funso 28: Kusintha ma Decameter kukhala Ma Kilomita
Sinthani ma decameter 100 kukhala makilomita.
Kukambirana:
\(100 \, \text{dam} = 1 \, \text{km}\)
Funso 29: Kusintha Maekala Kukhala Mamita A Sikweya
Sinthani maekala awiri kukhala masikweya mita. (ekala imodzi = 4046,86 m²)
Kukambirana:
\(2 \, \text{acre} = 8093,72 \, \text{m}^2\)
Funso 30: Kusintha ma Microsecond kukhala ma Millsecond
Sinthani ma microsecond 1000 kukhala ma millisecond.
Kukambirana:
\(1000 \, \mu\text{s} = 1 \, \text{ms}\)
Popeza kukambiranaku ndi kwakutali, ndiyima pano. Ngati mukufuna kuwona mafunso ndi zokambirana zambiri, chonde mundidziwitse.
Chitsanzo cha mafunso osinthira mayunitsi oyambira ndi otengedwa
Kusintha kwa mayunitsi oyambira a muyeso
Kusintha kwa mayunitsi a kutalika
Inchi imodzi =…. masentimita? = ……. mamita? (1)(2,54 masentimita) = 2,54 masentimita = 2,54 / 100 = Mphindi wa 0,0254
1 cm = …. inchi? 1 / 2,54 = 0,394 ine
Phazi limodzi = ….. masentimita? (1)(30,5 masentimita) = 30,5 masentimita
1 cm = …… mapazi? 1 / 30,5 = 0,033 mapazi
Yadi imodzi = ….. masentimita? (1)(91,44 masentimita) = 91,44 masentimita
1 cm = …… mayadi? 1 / 91,44 = 0,011 bwalo
1 mile = ….. km? (1) (1,61 km) = 1,61 km pa
1 km = ….. mamailosi? 1 / 1,61 = 0,621 zikwi
1 fermi = ….. mita? (1)(1 x 10-15 mamita) = 10-15 mita
1 angstrom ( = …. mita ? (1)(1 x 10-10 mamita) = 10-10 mita
Chaka chimodzi chowala = ….. mamita? (1)(9,46 x 1015 mamita) = 9,46 × 1015 mita
3 Zitsanzo za mafunso oyenda molunjika mmwamba
1. Mpira umaponyedwa molunjika mmwamba ndi liwiro loyambirira la 20 m/s. Dziwani kutalika kwakukulu kwa mpirawo. g = 10 m/s2
Zokambirana
Mu kuyenda molunjika mmwamba, chinthu chikakwera mmwamba, chimatsika, ndipo chikabwerera pansi, chimathamanga. Chifukwa chake, kuyenda molunjika mmwamba ndi chitsanzo cha GLBB.
Fomula ya GLBB :
vt =vo + pa
s = vo t + ½ pa2
vt2 =vo2 + ma axle awiri
3 Zitsanzo za mafunso okhudza kuyenda molunjika pansi
1. Mpira umaponyedwa molunjika pansi kuchokera ku nyumba yokhala ndi zipinda zambiri yokhala ndi liwiro loyamba la 10 m/s ndipo umafika pansi patatha masekondi awiri. Kodi liwiro la mpirawo ndi lotani ukagunda pansi? g = 10 m/s2
Zokambirana
Amadziwika kuti:
vo = 10 m/s
t = sekondi imodzi
g = 10 m/s2
Anafunsa kuti: