Pokusy na MFF - elektřina a magnetismus
Quiz
•
Physics
•
9th - 12th Grade
•
Practice Problem
•
Easy
Pavel Petrášek
Used 2+ times
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12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaký náboj bude na PVC tyči, pokud ji budeme třít srstí?
kladný
záporný
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaký náboj bude na PVC tyči, pokud ji budeme třít teflonem?
kladný
záporný
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Skleněná tyč se bez ohledu na to, čím budeme třít, nabije
kladně.
záporně.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Abychom na Wimshurstově indukční elektřině získali větší jiskry, musíme připojit
kondenzátor.
cívku.
rezistor.
5.
MULTIPLE SELECT QUESTION
45 sec • 2 pts
Ruka je
lepší vodič než vzduch.
horší vodič než vzduch.
lepší vodič než kov.
horší vodič než kov.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diody (LED) potřebují k rozsvícení
větší napětí než žárovka.
menší napětí než žárovka.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elektrická pevnost vzduchu je přibližně
3000 V/mm.
3000 V/m.
3000 V/dm.
3000 V/cm.
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