FS-1.3. Pohyb po kružnici - perioda, frekvence, obvod.rychlost
Quiz
•
Physics
•
9th - 12th Grade
•
Practice Problem
•
Hard
Marek Scholz
Used 7+ times
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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
45° odpovídá
pi/2 rad
pi/6 rad
pi/4 rad
45 rad
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
úhel 4π/18 rad vyjádřený ve stupních je (pište pouze číslo)
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
úhel 0,3 rad vyjádřený ve stupních je (označte všechny správné)
0,3*(360/2π)
17,2°
360/(2π*0,3)
19,1°
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Frekvence vyjadřuje
dobu trvání jedné otočky
počet otoček za jednu sekundu
počet stupňů v jedné otočce
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Určete frekvenci a periodu, pokud buben ždímačky má otáčky 1000 ot/min
f = 1000 Hz, T = 60 ms
T = 0,06 s, f = 16,66 Hz
T = 0,001 s, f = 16,66 Hz
f = 1000 Hz, T = 10 s
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perioda otáčení bubnu míchačky je 2,5 s a jeho poloměr půl metru. Určete a) frekvenci, b) obvodovou rychlost
0,4 Hz; 1,26 m/s
0,25 Hz; 1,81 m/s
0,25 Hz; 1,26 m/s
0,4 Hz; 1,81 m/s
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Jaký úhel (v radiánech) urazí zub kotouče pily za jednu sekundu, pokud je perioda otáčení kotouče rovna 0,04 s? (označte všechny správné)
50π rad
~157,1 rad
40π rad
~ 120,0 rad
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