
Fizika - 2.razred
Authored by Sara Metelko
Physics
10th Grade
Used 3+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Dva tijela imaju temperaturu 335K i 362K. Kolika je razlika u temperaturi ta dva tijela iskazana u °C?
37
27
15
49
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pri 30°C dvije šipke, aluminijska i željezna imaju jednaku duljinu od 40m. Koliko im se razlikuju duljine kod 40°C?
2.3 mm
2.8 mm
1.15 mm
1.4 mm
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Da bi mogli matematički opisati plin uvodimo pojam tzv. idealnog plina. Koji odgovor nije točan? Idealni plin po pretpostavci je onaj plin kod kojeg:
možemo zanemariti međudjelovanje između molekula, tj. njihovu potencijalnu energiju.
se molekule kaotično gibaju u svim smjerovima potpuno međusobno neovisno osim u trenutku sudara.
molekule zamišljamo kao materijalne točke zanemarujući njihov volumen.
molekule zamišljamo kao materijalne točke zanemarujući njihovu masu.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
U cilindru se nalazi 10m3 kisika [M(O2)=32g/mol] pri standardnim uvjetima. Kolika je to količina tvari iskazana molima? Kolika je masa kisika?
446 mol; 10 kg
223 mol; 7.15 kg
223 mol; 14.3 kg
466 mol; 14.3 kg
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
U zatvorenoj posudi nalazi se plin na temperaturi 27 °C i tlaku . Ako se plin zagrije na temeraturu 327°C tlak će biti:
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Za koliko stupnjeva se promijenila temperatura plina ako izohorno povećamo tlak plina dva puta? Početna temperatura plina je bila 27 °C. Za:
54
300
27
573
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Promotrite sljedeće tvrdnje:
1. Stanje plina potpuno je određeno tlakom p, volumenom V i brojem čestica N pojedinog plina.
2. Srednja kinetička energija molekulskog gibanja povećava se s povišenjem temperature plina.
3. Pri sudaru molekula sa stijenkom posude mijenja se smjer i iznos brzine pojedine molekule.
sve
2. i 3.
1. i 2.
samo 2
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