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9-sinf

Authored by SHOKIR SHOKIR

Physics

9th Grade

9-sinf
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20 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Atom  yadrosi  atrofida  qanday  zarrachalar  aylanadi ?

neytronlar

protonlar

protonlar   va neytronlar

elektronlar

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Proton  massasi  qanchaga  teng  ( me – elektron  massasi ) ?

9,1∙10-31 kg     

1836,3me         

1833,6me           

1838,6me

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Gapni  to’ldiring:  “ Nuklonlar  soni  bilan  farqlanuvchi  bir  xil  kimyoviy  elementning  turli   atomlari  ... deb  ataladi. ”

...izotoplar ...         

...izobarlar ...        

...izomerlar...     

...radioaktiv  elementlar...

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Uran  yadrolarining  bo’linish  reaksiyasini  birinchi  bo’lib  kim  o’tkazgan ?

E . Rezerford, 1911 y.                         

D.  CHedvik, 1932 y

O.Gan  va  F. Strassman, 1938 y

E. Rezerford, 1919 y

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Fotosintez  qanday  hodisaga  misol  bo’ladi ?

Yorug’likning  kimyoviy  ta’siriga      

Yorug’likning  bioligik  ta’siriga

Yorug’likning  issiqlik  ta’siriga

Yorug’likning  fizikaviy  ta’siriga

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Yorug’lik  tezligi  dastlab  kim  tomonifdan  o’lchangan ?

A. Maykelson    

Fizo

O.  Ryomer    

L. Fuko

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Yorug’likning  vakuumda  1 / 299 792 458 s    vaqt  oralig’ida  o’tadigan  yo’li  uzunligi  qanchaga  teng ?

1 m           

3∙108 m          

1 km          

1 sm

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