Physics

Kuchulukana ndi kuyandama mofanana - mavuto ndi mayankho

1. Chidutswa choyikidwa m'madzimadzi awiri okhala ndi mitundu yosiyanasiyana. Mu zakumwa A, gawo la 0.6 la chinthu limakhala mumadzimadzi. Mu zakumwa B, gawo la 0.5 la chinthu limakhala mumadzimadzi. Dziwani chiŵerengero cha kuchuluka kwa madzi A ndi madzi B.

Zodziwika:

Kuchuluka kwa chipika = x

Gawo la chinthucho mu madzi A = 0.6

Kuchuluka kwa madzi A = y

Gawo la chinthu mu madzi B = 0.5

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Kusunga mphamvu ya makina pamalo okhota - mavuto ndi mayankho

1. Ngati liwiro la mpira pa mfundo A ndi 6 m/s, liwiro la mpira pa mfundo B ndi √92 m/s, ndipo kuthamanga chifukwa cha mphamvu yokoka ndi g = 10 m/s ^2. Kodi kutalika kwa mfundo B (h) ndi kotani?

Zodziwika:

Liwiro la mpira pa mfundo A (v)_A) = 6 m/s

Liwiro la mpira pa mfundo B (v _B ) = √92 m/s

Kuthamanga chifukwa cha mphamvu yokoka (g) = 10 m/s ²

Kutalika kwa A (h _A ) = mamita 5.6

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Malo Ovuta Kwambiri - Mavuto ndi Mayankho

1. Dziwani ma coordinates a pakati pa mphamvu yokoka ya chinthucho monga momwe zasonyezedwera pachithunzi chili pansipa.

Yankho:

Gawani chinthucho m'zigawo zitatu.

Malo a gawo 1 (A ₁ ) = (2)(6) = 12 cm ²

Malo apakati ali pa mzere wa x (x ₁ ) = 1/2 (2) = 1 cm

Mfundo yapakati ili pa mzere wa y (y ₁ ) = 1/2 (6) = 3 cm

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Chiphunzitso cha Torricelli - mavuto ndi mayankho

1. Chubu chokhala ndi kutalika kwa masentimita 100 chodzazidwa ndi madzi. Dzenje Q lili pamtunda wa masentimita 10 kuchokera pansi. Kodi mtunda wopingasa (x) ndi wotani?

Zodziwika:

Mtunda pakati pa dzenje ndi pamwamba pa madzi (h) = 100 cm – 10 cm = 90 cm = 0.9 m

Kuthamanga chifukwa cha mphamvu yokoka (g) = 10 m/s ²

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Vector - mavuto ndi mayankho

Vekitala ndi Scalar

1. Pakati pa zosankha zotsatirazi, zomwe ndi ma scalar-vector pairs…

A. Mphamvu - kuthamanga

B. Kupanikizika - mphamvu

C. Kusamuka - ​​liwiro

D. Mphamvu yamagetsi - ​​kupanikizika

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Maikulosi yophatikizika - mavuto ndi mayankho

1.

Kutengera ndi chithunzi pamwambapa, kodi kukula konsekonse ndi kotani? Tangoganizani kuti diso labwinobwino ndiye kuti mfundo yapafupi (N) = 25 cm.

Zodziwika:

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Kuchuluka kwa thupi Mayunitsi Miyeso - Mavuto ndi Mayankho

1.

Kutengera tebulo lomwe lili pamwambapa, ndi kuchuluka kotani komwe kuli ndi mayunitsi ndi miyeso yeniyeni.

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Kuthamanga kwa radial - mavuto ndi mayankho

1. Ndi graph iti yomwe ili pansipa yomwe ikuwonetsa ubale pakati pa kufulumira kwapakati kapena kufulumira kwa radial (a _R ) ndi liwiro la mzere (v) mu kayendedwe kozungulira kofanana.

Yankho:

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Mphamvu zomwe zingatheke - mavuto ndi mayankho

Mphamvu yokoka

1. Mphamvu 4900 Joules imagwiritsidwa ntchito kukweza chinthu cholemera makilogalamu 50 kufika kutalika kwa h. Kodi kutalika kwa h ndi kotani? Kuthamanga chifukwa cha mphamvu yokoka (g) = 9.8 ms ^-2.

Zodziwika:

Kusintha kwa mphamvu yothekera (ΔPE) = 4900 Joules

Kulemera kwa chinthu (m) = 50 kg

Kuthamanga chifukwa cha mphamvu yokoka (g) = 9.8 m/s ²

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Nthawi ya kusakhazikika kwa tinthu tating'onoting'ono - mavuto ndi mayankho

1. Mipira iwiri yolumikizidwa ndi ndodo, monga momwe chithunzi chili pansipa chikusonyezera. Musanyalanyaze kulemera kwa ndodo . Kulemera kwa mpira P ndi magalamu 600 ndipo kulemera kwa mpira Q ndi magalamu 400. Kodi nthawi ya inertia ya dongosolo ndi yotani pa AB?

Zodziwika:

Mzere wozungulira ndi AB.

m _p = magalamu 600 = 0.6 kg, m _q = magalamu 400 = 0.4 kg

r _p = 20 cm = 0.2 m, r _q = 50 cm = 0.5 m

Kufunidwa: Nthawi ya kusakhazikika kwa dongosolo

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