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Drugi Njutnov zakon

Authored by Zorica Zdravkovic

Physics

7th Grade

Used 4+ times

Drugi Njutnov zakon
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6 questions

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1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Prepoznaj izraze koji predstavljaju Drugi Njutnov zakon

a =Fma\ =\frac{F}{m}

m=aFm=a\cdot F

F=maF=m\cdot a

F=amF=\frac{a}{m}

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ukoliko povećamo intenzitet sile kojom delujemo na telo 2 puta, ubrzanje tog tela će se:

smanjiti 2 puta

povećati 2 puta

smanjiti 4 puta

povećati 4 puta

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ako povećamo masu tela 3 puta, njegovo ubrzanje će se:

smanjiti 3 puta

povećati 3 puta

smanjiti 9 puta

povećati 9 puta

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Na telo mase 5 kg deluje sila intenziteta 20 N. Koliko je ubrzanje tela?

4 ms24\ \frac{m}{s^2}

0,25 ms20,25\ \frac{m}{s^2}

25 ms225\ \frac{m}{s^2}

100 ms2100\ \frac{m}{s^2}

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Kolikom silom treba delovati na telo mase 20 kg da bi ono dobilo ubrzanje od 2 m/s2?

10 N10\ N

0,1 N0,1\ N

40 N40\ N

0,4 N0,4\ N

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Sila intenziteta 30 N daje telu ubrzanje od 1,5 m/s2. Kolika je masa tog tela?

45 kg45\ kg

15 kg15\ kg

20 kg20\ kg

25 kg25\ kg

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