1. Jism massasi qaysi asbob bilan o’lchanadi ? A tarozi b menzurka c dinamometr d sekundomer 2
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7-sinf 1-variant 1.Jism massasi qaysi asbob bilan o’lchanadi ? A) tarozi B) menzurka C) dinamometr D) sekundomer 2. 0,25 kg massani grammlarda ifodalang A) 25 B) 250 C) 25 D) 0,25 3.Jism 5 N kuch ta’sirida 80 sm masofaga ko’chdi. Kuchning ishini hisoblang ? A) 400 J B) 4 kJ C) 4 J D) 4 W 5. Qurilma 10 minutda 6 kJ ish bajardi. Uning quvvati qanchaga teng (W) ? A) 10 B) 600 C) 0,1 D) 1000 6. Atmosfera bosimi dastlab kim tomonidan aniqlangan ? Arximed B) Paskal C) Torrichelli D) Galiley 6. Nuqtalar o’rnini to’ldiring :“ Suyuqlik qatlamlarining idish tubiga beradigan bosimi … deyiladi. ” A) ...atmosfera bosimi.... B)... dinamik bosim... C) ...statsionar bosim... D) ...gidrostatik bosim.... 7.Quvvatning o'lchov birligini aniqlang A) N·m B) Nyuton C) Joul D) ot kuchi 8. Mexanizmning foydali ish koeffitsienti uchun qaysi munosabat to’g’ri yozilgan ? 1. η>100% 2. η=Af/Au 3. η<100% 4. Au=Af+Aq 5. η=Au /Af A) 1, 4, 5 B) 2, 3, 5 C) 2, 3,4 D) 3,4,5 9. Temperaturani o'lchovchi asbobni aniqlang ? A) termometr B) manometr C) spidometr D) barometr 10. 720 km/soat necha m/s ga teng ? A) 50 B) 72 C) 200 D) 20 11. Gapni to’ldiring: “ 1 J – bu, 1 N kuch ta’sirida jismni .... masofaga ko’chirishda bajarilgan ishga teng. “ A) ...1 m .... B) ... ixtiyoriy... C) .... 1 km .... D) .... 1 sm ... 12. 0,1 kW∙soat necha Jga teng ? A)103 B) 3,6 ∙106 C)3,6 ∙105D) 36∙106 13. 1 s vaqt ichida 1 J ish bajaradigan qurilmaning quvvati qanchaga teng ? ______ W. 14. 1 o.k. necha vattga teng? _________________________________ 15. Suv muzlaganda uning qanday o’zgaradi ? ____________________ 2-variant 1. Jismning tezligi qaysi asbob bilan o’lchanadi? A) tarozi B) menzurka C) dinamometr D) sekundomer 2. 0,5 kg massani grammlarda ifodalang A) 500 B) 50 C) 0 .05 D) 0,5 3.Jism 15 N kuch ta’sirida 80 sm masofaga ko’chdi. Kuchning ishini hisoblang ? A) 400 J B)120 kJ C) 12 J D)1.2 W 4. 10 MW necha W ga teng ? A) 106 B) 107 C) 105 D) 10-7 5. Atmosfera bosimi dastlab kim tomonidan aniqlangan ? A) Arximed B) Paskal C) Torrichelli D) Galiley 6. Massasi 2 kg bo’lgan jismning 6 m balandlikdagi potensial energiyasi qanchaga teng (g=10 m/s2 ) ? A) 240 J B) 32 J C) 9,8 J D) 120 J 7. Eng kichik ( elementar ) zaryad miqdori nimaga teng ( C ) ? A) 1,9∙10-16B) 1,6 ∙ 10-19С)1,6 ∙1019 D) 9 ∙ 10-31 8. Quyidagi zarralarning qaysi biri manfiy zaryadga ega ? 1.Elektron 2.Proton 3.Neytron 4.Yadro A) 1 B) 2 C) 3 D) 4 9.Quvvatning o'lchov birligini aniqlang A) N·m B) Nyuton C) Joul D) ot kuchi 10. 10 m/s necha km/soat ga teng ? A) 90 B) 36 C) 54 D) 72 11. Gapni to’ldiring: “ 1 J – bu, 1 N kuch ta’sirida jismni .... masofaga ko’chirishda bajarilgan ishga teng. “ A) ...1 m .... B) ... ixtiyoriy... C) .... 1 km .... D) .... 1 sm ... 12.90 minut necha sekundga teng ? A) 5 400 B) 4 500 C) 3 600 D) 1 800 13. 1 s vaqt ichida 1 J ish bajaradigan qurilmaning quvvati qanchaga teng ? ______ W. 14. 1 o.k. necha vattga teng? _________________________________ 15. Suv muzlaganda uning qanday o’zgaradi ? ____________________ Download 29.09 Kb. Do'stlaringiz bilan baham: |
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