Mechanický tlak + jednotky tlaku
Quiz
•
Science, Physics
•
7th Grade
•
Practice Problem
•
Hard
Milan Švrčina
Used 63+ times
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18 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
V které poloze vyvolá cihla nejmenší tlak na podložku?
A)
B)
C)
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Které těleso působí na podložku největším tlakem?
(Všechny modré kvádry mají stejnou hmotnost a shodné rozměry.)
A)
B)
C)
D)
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jaký je hlavní důvod, proč mají tanky pásy a ne jen čtyři kola jako auta?
Aby lépe vypadaly.
Aby se snížil valivý odpor.
Aby se snížilo riziko zaboření tanku do bláta nebo písku.
Aby se snížilo riziko smyku.
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Tlak má značku:
p
Pa
S
F
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Která z uvedených jednotek nepatří mezi jednotky tlaku?
bar
hPa
MPa
N
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Silniční betonový panel má rozměry 1m x 3m a hmotnost 1,5 t. Jaká je plocha panelu? Jaká tíhová síla na panel působí?
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Silniční panel působí na ploše silou . Jaký tlak síla v půdě pod panelem vyvolá?
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