Relativnost i moderna fizika
Quiz
•
Physics
•
12th Grade
•
Practice Problem
•
Hard
Ana Canjuga
Used 13+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Inercijalni sustav je sustav koji se giba:
jednoliko pravocrtno
jednoliko usporeno
jednoliko ubrzano
brzinom svjetlosti
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Koliko iznosi najveća moguća brzina svjetlosti:
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
.
Raketa prolazi pored svemirske postaje brzinom 0,7c u smjeru paralelnom duljini rakete. Dežurni fizičar u postaji izmjeri da je duljina rakete 30 m. Koliku duljinu rakete mjeri putnik u raketi?
manju od 30 m
veću od 30 m
točno 30 m
ne može odrediti
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Vagon vlaka ima vrata na prednjem i stražnjem dijelu, koja se otvore u trenutku kad se upali žarulja koja se nalazi na sredini vagona. Ako se vagon giba nadesno, za promatrača izvan vagona:
najprije se otvaraju lijeva vrata bez obzira na smjer gibanja vagona
najprije se otvaraju desna vrata bez obzira na smjer gibanja vagona
najprije se otvaraju lijeva vrata jer se vagon giba nadesno
vrata se otvaraju istodobno bez obzira na koju se stranu vagon giba
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kako nekom mirujućem promatraču izgleda tijelo oblika kruga (slika najviše lijevo) koje projuri pokraj njega brzinom bliskom brzini svjetlosti u naznačenom smjeru?
a)
b)
c)
d)
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Blizanac A krene svemirskim brodom, dok blizanac B ostane na Zemlji. Nakon nekog vremena ponovno se sastanu na Zemlji.
Za blizanca A je prošlo manje vremena
Za blizanca B e prošlo manje vremena
Za obojicu je prošlo jednako vrijeme
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vlak koji se giba jednoliko ubrzano je primjer neinercijalnog sustava.
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