
Optik 2: Ljus och färger
Quiz
•
Physics
•
7th - 9th Grade
•
Practice Problem
•
Easy
Rebecca Stafford
Used 185+ times
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9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vad är ljusets hastighet?
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
En röd vägg är röd eftersom.........
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Vad kallas det när ljuset delar upp sig de sju olika färgerna?
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ljusets hastighet i glas är lägre än i luft, varför?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vitt ljus är:
samma som vitt strålning
uppbyggd av två olika färger
en blandning av alla färger
osynligt för människor
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Svarta föremål _________ alla färger.
reflekterar
äter upp
blandar
absorberar
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vita föremål ________ alla färger.
lyser upp
reflekterar
saktar ner våglängden på
absorberar
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Synliga ljusets frekvens mäts i enheten:
våglängd (vg)
elektromillimeter (emm)
nanometer (nm)
kilometer (km)
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vilken färg ingår inte i det synliga ljusets spektrum?
indigo
grön
rosa
violett
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