
biofizika - ponavljanje
Quiz
•
Physics
•
12th Grade
•
Hard
renata jularić
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10 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Što je biomembrana?
tanki sloj fotolipida i proteina
gusti sloj fosfolipida i proteina
odvaja biološki sustav od okoline
spaja biološki sustav i okolinu
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
interferencija valova je preklapanje istih valova
(superpozicija koherentnih valova)
točno
netočno
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
zvuk je
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
indeks loma svjetlosti je:
sposobnost loma svjetlosti u nekom sredstvu
kut pod kojim se svjetlost u nekom sredstvu lomi
omjer brzine svjetlosti u vakumu i brzine svjetlosti u sredstvu
5.
OPEN ENDED QUESTION
3 mins • 1 pt
napiši dvije karakteristike mrežnice oka
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Answer explanation
mrežnica oka je tanki sloj optički aktivnih stanica koje:
- apsorbiraju fotone svjetlosti
- pretvaraju njihovu energiju u naponske impulse u živčanim vlaknima
- sadrži fotoreceptore =
štapići i čunjići
6.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
izračunaj koliko topline treba odvesti čovjeku mase 100 kg, da mu se temperatura tijela spusti s 39 C na 37,5 C.
Q = -450 000
Q = 450 000
7.
MULTIPLE SELECT QUESTION
10 mins • 1 pt
izračunaj čujemo li 1. i 4. harmonik žice napete silom ood 8 N, kojoj je duljina pola metra, a masa 40 g.
f1 = 20 Hz
(čujemo)
f1 = 20 Hz
(ne čujemo)
f4 = 50 Hz
(čujemo)
f4 = 50 Hz
(ne čujemo)
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