Mis on valguskiirus? (1p)

Valguse sirgjooneline liikumine KT

Quiz
•
Physics
•
8th Grade
•
Hard
Tom Maksimov
FREE Resource
9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3x105 m/s
3x108 km/h
3x108 m/s
3x104 km/h
2.
MULTIPLE SELECT QUESTION
45 sec • 2 pts
Vali valgusallikad (2p)
Kuu
Ekraan
Hõõglamp
Vesi
3.
MULTIPLE SELECT QUESTION
45 sec • 2 pts
Vali soojuslikud valgusallikad (2p)
LED lamp
Hõõglamp
Päike
Peegel
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Millest koosneb päike? (1p)
Vesinik ja hapnik
Hapnik ja heelium
Hapnik ja süsinik
Vesinik ja heelium
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Mida lähemal elektron tuumas tiirleb, seda (suurem/väiksem) on elektroni energia (1p)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mida tähistab antud märk? (1p)
footon
tihedus
lainepikkus
valgusaasta
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Milliseid laineid näevad inimesed? (1p)
ainult nähtav valgus
nähtav valgus ja infrapunakiirgus
ultraviolettkiirgus
kõiki laineid
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mis on põhivärvused? (1p)
Punane, kollane, roheline
Punane, roheline, sinine
Roheline, lilla, oranž
Kollane, sinine, punane
9.
OPEN ENDED QUESTION
3 mins • 5 pts
Arvuta, mitme valgusaasta kaugusel meist asub tähtkuju, kui valgus sellelt jõuab Maale 17 520 tunniga.
Punkte saad andmete, võrrandite, teisendamiste, ühikute, lahendustkäigu ja õige vastuse eest. (5p)
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