Kev hloov pauv kub

Cov nplai Celsius thiab Fahrenheit yog cov nplai kub sib txawv. Yog tias qhov kub ntawm ib yam khoom raug ntsuas thiab qhia hauv Celsius, thiab peb xav qhia qhov kub hauv Fahrenheit, peb hloov ntawm Celsius mus rau Fahrenheit. Hauv seem no, peb kawm paub yuav ua li cas hloov lossis ua kev hloov pauv kub.

Ntawm qhov siab ntawm 1 atm, qhov kub ntawm cov dej khov rau lub ntsuas kub Celsius = 0 ^oC, thaum lub ntsuas kub Fahrenheit = 32 ^oF. Ntawm qhov tod tes, ntawm qhov siab ntawm 1 atm, qhov kub ntawm cov pa dej rau lub ntsuas kub Celsius = 100 ^oC, thaum lub ntsuas kub Fahrenheit = 212 ^oF. Saib daim duab hauv qab no!

Yuav kom yooj yim dua rau koj hloov Celsius nplai mus rau Fahrenheit nplai lossis hloov Fahrenheit nplai mus rau Celsius nplai, tsuas yog nco ntsoov 0 ^oC = 32 ^oF thiab 100 ^oC = 212 ^oF. Ntawm qhov ntsuas Celsius, ntawm 0 ^oC txog 100 ^oC muaj 100^oThaum nyob rau ntawm Fahrenheit nplai, ntawm 32 ^oF txog 212 ^oF muaj 180^o.

Hloov Celsius nplai rau Fahrenheit nplai

Yuav kom tau qhov kub hauv Fahrenheit scale (T)_F), ua ntej muab qhov kub thiab txias sib npaug rau hauv Celsius nplai (T_C) nrog 9/5 ces ntxiv rau 32^o.

Piv txwv lus nug 1.20 ^oC = …. ^oF

Hloov Fahrenheit mus rau Celsius

Yuav kom tau qhov kub thiab txias hauv Celsius nplai (T)_C), txo qhov kub hauv Fahrenheit nplai (T_F) nrog 32^o, ces muab 5/9 ntxiv rau.

Piv txwv lus nug 1.20 ^oF = …. ^oC

Piv txwv lus nug 1.20 ^oF = …. K

4. Cov Lus Nug Txog Kev Xeem Thoob Tebchaws Xyoo 2012/2013 Qib Siab Kev Tshawb Fawb SP 29 No. 3

Saib daim duab hauv qab no ntawm kev ntsuas qhov kub ntawm cov kua dej siv lub ntsuas kub Fahrenheit! Yog tias peb ntsuas qhov kub ntawm cov kua dej siv lub ntsuas kub Celsius, nws yuav qhia qhov kub ntawm...

A. 20 ^oC
B. 25 ^oC
C. 45 ^oC
D. 98 ^oC

Kev Sib Tham

ubah ua suhu nyob rau hauv Fahrenheit nplai mus rau qhov ntsuas Celsius.
T_C = 100/180 (T_F - 32)
T_C = 5/9 (77 – 32) = 5/9 (45) = 5(5) = 25 ^oC
Cov lus teb yog B.

5. Cov Lus Nug Txog Kev Xeem Thoob Tebchaws Xyoo 2012/2013 Qib Siab Kev Tshawb Fawb SP 40 No. 3

Qhov kub hauv ib chav kawm yog 28 ^oC. Yog tias ntsuas qhov kub nrog lub ntsuas kub Fahrenheit, nws yuav qhia qhov kub ntawm…

A. 26,8 ^oF
B. 35,4 ^oF
C. 62,8 ^oF
D. 82,4 ^oF

Kev Sib Tham
Hloov qhov kub thiab txias los ntawm Celsius mus rau Fahrenheit.
T_F = 180/100 T_C + 32
T_F = 9/5 (28) + 32 = 9(5,6) + 32
T_F Luas = 50,4 + 32 = 82,4 ^oF
Cov lus teb yog D.

6. Cov Lus Nug Txog Kev Xeem Thoob Tebchaws Xyoo 2012/2013 Qib Siab Kev Tshawb Fawb SP 50 No. 3
Daim duab hauv qab no qhia txog qhov kub ntawm cov kua ntsuas siv lub ntsuas kub Celsius. Yog tias qhov kub ntawm cov kua ntsuas siv lub ntsuas kub Fahrenheit, qhov kub ntawm cov kua yuav yog…
A. 40 ^oF
B. 58 ^oF
C. 104 ^oF
D. 122 ^oF
Kev Sib Tham
Hloov qhov kub hauv Celsius scale rau Fahrenheit scale.
T_F = 180/100 T_C + 32
T_F = 9/5 (40) + 32 = 9(8) + 32
T_F Luas = 72 + 32 = 104 ^oF
Cov lus teb yog C.