Harorat birligini o'zgartirish muammolariga 5 ta misol
1. Jismning harorati 122°F ga teng, Selsiy shkalasi bo'yicha o'lchanganda...
A. 323°C
B. 122°C
C. 50°C
D. 40°C
Munozara
Harorat shkalasini Farengeytdan Selsiygacha o'tkazish formulasi:
T C = 5/9 (T F – 32)
Tavsif: T C = Selsiy shkalasida harorat, T F = Farengeyt shkalasida harorat
Selsiy shkalasida harorat quyidagicha:
T C = 5/9 (122 – 32) = T C = 5/9 (90) = 5 (10)
T C = 50 ° C
2. Bolada isitma bor, ikkita shkalali termometr bilan o'lchanganda, Selsiy shkalasi bo'yicha ko'rsatilgan raqam 40° ga teng, keyin Reamur shkalasida ko'rsatilgan raqam...
A. 31 °R
B. 32 °R
C. 45 °R
D. 50°R
Munozara
Ma'lumki:
Selsiy shkalasida harorat (T o C) = 40
Savol: Reamur shkalasi bo'yicha harorat (T o R )
Javob:
Sof suvning qaynash harorati (H₂O ) = 100 o C = 80 o R
Toza suvning muzlash nuqtasi harorati (H₂O ) = 0 o C = 0 o R
Tselsiy bo'yicha Reamur shkalasiga aylantirish formulasi:
To R = (80/100) To C
To R = (4/5) To C
To R = (4/5) 40
To R = (4)(8)
To R = 32 o R
To'g'ri javob B.
3. 
Yon tomondagi termometr rasmiga qarang! Selsiy termometr shkalasidagi Y harorati…
A. 172 oC
B. 108 oC
C. 60 oC
D. 44 oC
Munozara
Ma'lumki:
Farengeyt shkalasi = 140 oF
So'ralgan: Selsiy shkalasi
Javob:
Farengeyt shkalasini Selsiy shkalasiga o'tkazish formulasi:
T oC = 5/9 (T oF – 32)
Selsiy shkalasi:
T oC = 5/9 (140 – 32)
T oC = 5/9 (108)
T oC = 540/9
T oC = 60
To'g'ri javob C.
4.
Quyidagi harorat o'lchovlariga e'tibor bering! Farengeyt termometridagi Y qiymati…
A. 54 oF
B. 65 oF
C. 76 oF
D. 86 oF
Munozara
Ma'lumki:
Selsiy shkalasi = 30 oC
Savol berildi: Farengeyt shkalasi
Javob:
Selsiy shkalasini Farengeyt shkalasiga o'tkazish formulasi:
T oF = (9/5)(T) oC) + 32
Farengeyt shkalasi:
T oF = (9/5)(30) + 32
T oF = (270/5) + 32
T oF = 54 + 32
T oF = 86 yil
To'g'ri javob D.
5. 
Quyidagi haroratni o'lchash rasmiga qarang! Farengeyt termometri haroratni ko'rsatadi….
A. 92 oF
B. 108 oF
C. 122 oF
D. 140 oF
Munozara
Ma'lumki:
Selsiy shkalasi = 60 oC
Savol berildi: Farengeyt shkalasi
Javob:
Selsiy shkalasini Farengeyt shkalasiga o'tkazish formulasi:
T oF = (9/5)(T) oC) + 32
Farengeyt shkalasi:
T oF = (9/5)(60) + 32
T oF = (9)(12) + 32
T oF = 108 + 32
T oF = 140 yil
To'g'ri javob D.
Savol manbasi:
O'rta maktab/Islom o'rta maktabi fanlari bo'yicha milliy imtihon savollari
