Sayansi

Zitsanzo 4 za Mafunso Osavuta a Pendulum Pendulum Yosavuta

1. Pendulum yosavuta imakhala ndi chingwe chomwe chili ndi kutalika kwa masentimita 40 ndipo kulemera kwa magalamu 100 kumapachikidwa kumapeto kwa chingwecho. Ngati kuthamanga chifukwa cha mphamvu yokoka kuli 10 m/s² Kotero nthawi ndi kuchuluka kwa pendulum yosavuta ndi ...
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Ndizodziwika kuti :
Kutalika kwa chingwe (l) = 40 cm = 0,4 mamita
Kuthamanga chifukwa cha mphamvu yokoka (g) = 10 m/s²
Anafunsa : Nthawi (T) ndi kuchuluka kwa nthawi (f)

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Zitsanzo 5 za modulus ya Young ya mavuto a elasticity stress-stress

1. Chingwe cha nayiloni cha mainchesi 2 chimakokedwa ndi mphamvu ya ma Newton 100. Dziwani mphamvu ya chingwecho!
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Ndizodziwika kuti :
Mphamvu yokoka (F) = 100 Newton
Chingwe cha m'mimba mwake (d) = 2 mm = 0,002 mamita
Utali wa chingwe (r) = 1 mm = 0,001 mita
Anafunsa Kukanika kwa chingwe

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Zitsanzo 7 za mafunso okhudza mphamvu ya capacitor ya mbale yofanana

1. Capacitor ya mbale yofanana yokhala ndi mphamvu ya C ili ndi vacuum permittivity ya ε_o, dera lopingasa A ndi mtunda pakati pa mbale d. Ngati dera lopingasa la capacitor lawonjezeka kufika nthawi 4, mtunda pakati pa mbale umakhala 2d ndipo vacuum permittivity imakhala 5ε_o,maka mphamvu ya capacitor ya mbale yofanana imasanduka…
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Zitsanzo 9 za mavuto a injini yotenthetsera (kugwiritsa ntchito lamulo lachiwiri la thermodynamics)

1. Mu nthawi imodzi, injini imayamwa ma Joules 3000 a kutentha kuchokera ku malo osungira kutentha kwambiri ndipo imakana ma Joules 1000 a kutentha kupita ku malo osungira kutentha kochepa. Dziwani momwe injini yotenthetsera imagwirira ntchito!

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Injini yotenthetsera Mawu oti "carnot" m'mafunso omwe ali patsamba lino si ofanana ndi injini ya Carnot. Injini ya Carnot ndi injini yoyenera yotenthetsera ndipo imapezeka m'malingaliro okha. Mosiyana ndi zimenezi, injini yotenthetsera yomwe yatchulidwa mu funsoli ndi injini yeniyeni yotenthetsera, osati injini yotenthetsera yongopeka (injini ya Carnot).

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11 Zitsanzo za mafunso okhudza kugwiritsa ntchito lamulo loyamba la thermodynamics pa njira zosiyanasiyana za thermodynamic (isobaric, isothermal, isochoric)

1. Chithunzi chili pansipa chikuwonetsa kayendedwe ka thermodynamic komwe kumachitika ndi mpweya. Ntchito yomwe mpweya umagwira ntchito ABCD ndi…

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Ndizodziwika kuti :
Kupanikizika 1 (P)₁) = 2 x 10⁵ Pa
Kupanikizika 2 (P)₂) = 4 x 10⁵ Pa
Voliyumu 1 (V)₁) = 1 m³
Voliyumu 2 (V)₂) = 3 m³
Anafunsa Ntchito yomwe mpweya umachita mu ndondomeko ya ABCD cycle
Yankhani :
Ntchito yochitidwa ndi mpweya = dera la rectangle ABCD.
W = (P)₂ - P₁)(V₂ - V₁)
W = (4 x 10⁵ - 2 x 10⁵)(3 – 1)
W = (2 x 10⁵) (2)
W = 4 x 10⁵ Joule
Ntchito yomwe mpweya umachita mu ndondomeko ya ABCD cycle ndi 4 x 10⁵ Joule.

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3 Zitsanzo za mafunso okhudza kugwiritsa ntchito lamulo loyamba la thermodynamics mu njira za isochoric (voliyumu yokhazikika)

1. Chithunzi cha kupanikizika (P) motsutsana ndi voliyumu (V) ya mpweya womwe ukudutsa mu njira ya isochoric. Ntchito yomwe mpweyawo umagwira mu ndondomeko ya AB ndi…

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Njira AB = njira ya isochoric (voliyumu yosasinthasintha). Pa voliyumu ya isochoric, voliyumu ya mpweya (ndi voliyumu ya malo) sikusintha kotero palibe ntchito yomwe imachitika ndi mpweyawo.

2. Ma mole atatu a mpweya wa monatomic pa kutentha kwa 47 ^o C ndi kupanikizika kwa 2 x 10 ⁵ Pascal amadutsa mu njira ya isochoric mpaka kupanikizika kukukwera kufika pa 3 x 10 ⁵ Pascal. Kusintha kwa mphamvu yamkati ya mpweya ndi… Universal gas constant (R) = 8,315 J/mol.K

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Zitsanzo 5 za kugwiritsa ntchito lamulo loyamba la thermodynamics pa njira za isothermal (kutentha kosalekeza)

1. Chithunzi chili pansipa chikuwonetsa mpweya wabwino kwambiri womwe umagwiritsidwa ntchito njira ya isothermal (njira). Ntchito yomwe yachitika ndi mpweya womwe ukuchitika mu AB ndi…
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Ntchito yachitika = dera lomwe lili pansi pa curve AB = dera la triangle + dera la rectangle
W = [½ (8 x 10)⁵–4 x 10⁵)(3-1)] + [4 x 10⁵ (3-1)]
W = [½ (4 x 10)⁵)(2)] + [4 x 10⁵ (2)]
W = [4 x 10⁵] + [8 x 10⁵]
W = 12 x 10⁵ Joule

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Zitsanzo 6 za mafunso okhudza kugwiritsa ntchito lamulo loyamba la thermodynamics pa njira za isobaric (kupanikizika kosalekeza)

1. Kupanikizika (P) - graph ya voliyumu (V) ya mpweya womwe ukudutsa mu njira ya isobaric. Ntchito yomwe mpweyawo ukugwira ntchito mu ndondomeko ya AB ndi…

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Ndizodziwika kuti :
Kupanikizika (P) = 5 x 10⁵ N / m²
Voliyumu yoyamba (V)₁) = 2 m³
Voliyumu yomaliza (V)₂) = 6 m³
Anafunsa : ntchito yomwe yachitika mu ndondomeko AB

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Zitsanzo zitatu za mafunso okhudza lamulo loyamba la thermodynamics

1. Ma Joules 3000 a kutentha amawonjezedwa ku dongosolo, ndipo dongosololi limagwira ntchito ma Joules 2500 pa malo ozungulira. Kusintha kwa mphamvu yamkati mwa dongosololi ndi…

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Ndizodziwika kuti :
Kutentha (Q) = +3000 Joules
Ntchito (W) = +2500 Joules
Anafunsa : kusintha kwa mphamvu zamkati
Yankhani :

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Zitsanzo 19 za Chiphunzitso cha Kinetic cha Mpweya

1. Mpweya wabwino kwambiri mu chidebe chotsekedwa poyamba umakhala ndi mphamvu ya P ndi voliyumu V. Ngati mphamvu ya mpweya yawonjezeka kufika ku nthawi 4 kuposa yoyamba ndipo mphamvu ya mpweya imakhalabe yofanana, chiŵerengero cha mphamvu yoyamba ya kinetic ndi mphamvu yomaliza ya kinetic ya mpweya ndi...
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Ndizodziwika kuti :
Kupanikizika koyamba (P)₁) = P
Kupanikizika komaliza (P)₂) = 4P
Voliyumu yoyamba (V)₁) = V
Voliyumu yomaliza (V)₂) = V

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