
Quiz de Eletrostática
Authored by ALESSANDRO LIMA KONOPACKI
Physics
12th Grade
Used 2+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a fórmula correta da força eletrostática entre duas cargas pontuais, segundo a Lei de Coulomb?
F = k × (q₁ + q₂) / r²
F = k × q₁ × q₂ × r²
F = k × (q₁ × q₂) / r²
F = (q₁ × q₂) / (k × r²)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Converta 25 µC (microcoulombs) para coulombs:
2,5 × 10⁻³ C
2,5 × 10⁻⁴ C
2,5 × 10⁻⁵ C
2,5 × 10⁻⁶ C
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a distância em metros correspondente a 20 cm?
20 × 10⁻³ m
20 × 10⁻² m
20 × 10⁻¹ m
20 × 10⁰ m
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Duas cargas de 2 µC e 3 µC estão separadas por 5,0 × 10⁻² m. Qual é a força eletrostática entre elas? Use: k = 9,0 × 10⁹ N·m²/C² 2 µC = 2,0 × 10⁻⁶ C 3 µC = 3,0 × 10⁻⁶ C
2,16 × 10⁻¹ N
2,16 × 10⁰ N
2,16 × 10¹ N
2,16 × 10² N
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual dos valores abaixo corresponde corretamente a 5,0 × 10⁻⁴ C em notação decimal?
0,0005 C
0,0050 C
0,000050 C
0,00005 C
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Converta 0,0015 C para notação científica:
1,5 × 10⁻¹ C
1,5 × 10⁻² C
1,5 × 10⁻³ C
1,5 × 10⁻⁴ C
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A distância entre duas cargas é de 4,0 × 10⁻² m. Qual é o valor correspondente em centímetros?
0,4 cm
4,0 cm
40 cm
400 cm
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