Fiziks nke ụlọ akwụkwọ sekọndrị

Ihe atụ 9 nke ajụjụ gbasara fiziki nuklia gbasara mmeghachi omume fusion na ike njikọta atọm

1. Lee mmeghachi omume njikọta nuklia ndị a:
₁H² + ₁H³ → ₂He⁴ + ₀n¹ +E
Ọ bụrụ na oke uka ahụ ₁H² = 2,014 amu, oke ₁H³ = 3,016 amu, oke nke α particle = 4,0026 amu na oke nke neutron = 1,0084 amu, mgbe ahụ ike e mepụtara bụ…. (1 amu bụ 931 MeV)
A. 18,62 MeV
B. 17,69 MeV
C. 16,76 MeV
D. 15,73 MeV
E. 14,89 MeV
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Ihe atụ anọ nke ajụjụ gbasara oke okpomọkụ na ikike okpomọkụ kpọmkwem

1. Olee nke na-ekpo ọkụ ngwa ngwa ma a kpọọ ya ọnụ n'anwụ na-ekpo ọkụ, aluminom ma ọ bụ ọla kọpa? Okpomọkụ kpọmkwem nke aluminom = 900 J/kg ^o C na okpomọkụ kpọmkwem nke ọla kọpa = 390 J/kg ^o C.

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Ka okpomọkụ kpọmkwem nke ihe na-adịkwu ukwuu, otú ahụ ka ọ na-ewe ogologo oge ka ihe ahụ kpoo ọkụ, n'aka nke ọzọ, ka okpomọkụ kpọmkwem nke ihe na-adị obere, otú ahụ ka ọ na-ekpo ọkụ ngwa ngwa.

Okpomọkụ kpọmkwem nke ọla kọpa dị obere karịa okpomọkụ kpọmkwem nke aluminom, ya mere ọla kọpa na-ekpo ọkụ ngwa ngwa.

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Ihe atụ ise nke nsogbu okpomọkụ

1. Tin nke nwere ibu kilogram abụọ nwere okpomọkụ kpọmkwem nke 130 J.kg ^-1 C ^-1 . Oke okpomọkụ nke tin na-amịkọrọ iji bulie okpomọkụ ya site na 50 ^o C ruo 100 ^o C bụ….

Mkparịta ụka

A maara na:

Ibu (m) = 2 kg

Okpomọkụ kpọmkwem nke tin (c) = 130 J.kg ^-1 C ^-1

Mgbanwe okpomọkụ (Δ T) = 100 ^o C – 50 ^o C = 50 ^o C

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Ihe atụ ise nke ajụjụ gbasara mgbasawanye olu

1. A na-eji aluminom mee bọọlụ siri ike nke nwere oke mgbasa nke 24 x 10 ^{-6 o} C ^-1 . Ọ bụrụ na okpomọkụ nke 30 ^o C olu bọọlụ ahụ bụ 30 cm ³ , mgbe ahụ ka olu bọọlụ ahụ wee ruo 30,5 cm ^3, a ga-ekpo ọkụ bọọlụ ahụ ruo okpomọkụ nke….. ^o C

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A maara na:

Ọnụọgụ nke mgbasawanye ahịrị (α ) = 24 x 10 ^{-6 o} C ^-1

Ọnụọgụ mgbasawanye olu (γ ) = 3 a = 3 x 24 x 10 ^{-6 o} C ^-1 = 72 x 10 ^{-6 o} C ^-1

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Ihe atụ atọ nke ajụjụ gbasara mgbasawanye mpaghara

1. Mpempe akwụkwọ ígwè dị n'okpomọkụ nke 20 ^oC nwere ogologo 50 cm na obosara 30 cm. Ọ bụrụ na ọnụọgụgụ nke mgbasawanye ígwè dị larịị bụ 10 ^{-5 o} C ^-1 mgbe ahụ mmụba na mpaghara na mkpokọta mpaghara na okpomọkụ nke 60 ^o C bụ….

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A maara na:

Okpomọkụ mbụ (T ₁ ) = 20 ^oC

Okpomọkụ ikpeazụ (T2 ) ₌ 60 ^oC

Mgbanwe okpomọkụ (Δ T) = 60 ^o C – 20 ^o C = 40 ^o C

Mpaghara mbụ (A ₁ ) = Ogologo x obosara = 50 cm x 30 cm = 1500 cm ²

Ọnụọgụ nke mgbasawanye ahịrị nke ígwè (α ) = 10 ^{-5 o} C ^-1

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Ihe atụ isii nke ajụjụ nlereanya Atomic

1. Ihe dị iche n'etiti ụdị atọm dịka Rutherford na Bohr si kwuo bụ…..

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Ihe atụ ise nke ajụjụ gbasara mgbasawanye ogologo

1. Ogwe ígwè dị n'okpomọkụ nke 20^oC nwere ogologo nke 40 cm. Ọnụọgụ nke mgbasawanye ahịrị nke ígwè bụ 10^{-5 o}C^-1Mmụba n'ogologo ígwè na ogologo ikpeazụ nke ígwè na suhu 70^oC bụ....
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A maara na:
Mmụba okpomọkụ (ΔT) = 70^oC - 20^oC=50^oC
Ogologo mbụ (L)₁) = 40cm
Ọnụọgụ nke mgbasawanye kwụ ọtọ nke ígwè (a) = 10^{-5 o}C^-1
A jụrụ: Mmụba n'ogologo (ΔL) na ogologo ikpeazụ (L)₂)
Azịza:
a) Mmụba n'ogologo (ΔL)
ΔL = α L₁ ΔT
ΔL = (10)^{-5 o}C^-1)(40 cm)(50^oC)
ΔL = (10)^-5)(2 x 10³) cm
ΔL = 2 x 10^-2 cm
ΔL = 2/10² cm
ΔL = 2 / 100 cm
ΔL = 0,02 cm

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Ihe atụ 6 nke ajụjụ mgbanwe nha okpomọkụ: nha Celsius, nha Fahrenheit, nha Kelvin

1. 50^oC = …… ^oF?
Mkparịta ụka
N'ọnọdụ nrụgide ikuku nke 1 ikuku, okpomọkụ ebe ice maka temometa Celsius bụ 0^oC, ebe termometer Ọnụọgụ Fahrenheit bụ 32^oF. N'ọnọdụ nrụgide ikuku nke 1 ikuku, okpomọkụ ebe uzuoku maka temometa Celsius bụ 100^oC, ebe temometa Fahrenheit bụ 212^oF.
Ya mere 0^oC=32^oF na 100^oC=212^oF.

^{N'ihe gbasara Celsius, e nwere ogo} 100 n'etiti 0 ^° C na 100 ^° C. N'ihe gbasara Fahrenheit, e nwere ^{ogo 180 n'etiti 32 °} F na 212 ^° F. Iji nweta okpomọkụ Fahrenheit (T ^° F), buru ụzọ mụbaa okpomọkụ Celsius (T ^° C) site na 9/5 wee tinye 32 ^{° C.}

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Ihe atụ atọ nke ajụjụ nhazi temometa

1. A ga-eji paịpụ iko na-enweghị nha nke nwere mmanya na-aba n'anya. termometerOgologo nke kọlụm mmanya mgbe etinyere nsọtụ ala nke ọkpọkọ iko n'ime ice gbazere agbaze bụ 5 cm na ịdị elu nke kọlụm mmanya mgbe etinyere nsọtụ ala nke ọkpọkọ iko n'ime mmiri esi mmiri bụ 25 cm. Mgbe ejiri ya tụọ okpomọkụ mmiri, ịdị elu nke kọlụm mmanya ahụ bụ 15 cm. Suhu mmiri bụ.... ^oC
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Ajụjụ na usoro ihe atụ maka sekit eletriki na nguzogide eletriki

Sekit eletriki

1. Lee eserese sekit eletriki na-esote. Oke ọkụ eletrik na-agafe na resistor 8 Ohm bụ….
A. 1,8 Amperes
B. 1,2 Amperes
C. 0,8 Amperes
D. 0,6 Amperes

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