What is the SI unit of electric current?
Volt
Ampere
Ohm
Watt
Which law explains the relationship between current, voltage, and resistance?
Newton’s Law
Boyle’s Law
Ohm’s Law
Faraday’s Law
What is the chemical formula of glucose?
C₂H₆O
C₆H₁₂O₆
CH₄
H₂SO₄
Which part of the cell is known as the “powerhouse”?
Nucleus
Ribosome
Mitochondria
Golgi apparatus
What is the speed of light in vacuum?
3 × 10⁶ m/s
3 × 10⁸ m/s
3 × 10¹⁰ m/s
3 × 10⁴ m/s
Which gas is most abundant in Earth’s atmosphere?
Oxygen
Carbon dioxide
Nitrogen
Hydrogen
What is the pH value of a neutral substance?
0
14
7
10
Which organelle is responsible for protein synthesis?
Lysosome
Ribosome
Vacuole
Chloroplast
Which planet is known as the Red Planet?
Venus
Mars
Jupiter
Saturn
What type of reaction absorbs heat?
Exothermic
Endothermic
Neutralization
Combustion
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