Physics, Chemistry, and Biology Quiz

What is the unit of electrical resistance?

• Volt

• Ampere

• Ohm

• Watt

Which law states that the force between two point charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them?

• Newton's Second Law

• Coulomb's Law

• Ohm's Law

• Faraday's Law

What type of lens is used to correct myopia (short-sightedness)?

• Convex lens

• Concave lens

• Cylindrical lens

• None of the above

What is the chemical formula of sodium chloride?

• NaCl

• KCl

• NaOH

• HCl

Which gas is evolved when zinc reacts with hydrochloric acid?

• Oxygen

• Hydrogen

• Nitrogen

• Carbon dioxide

What is the pH of a neutral solution at 25°C?

• 0

• 7

• 14

• 10

What is the functional unit of the kidney?

• Neuron

• Alveoli

• Nephron

• Villus

Which process involves the conversion of glucose into pyruvate?

• Photosynthesis

• Glycolysis

• Krebs cycle

• Electron transport chain

What is the powerhouse of the cell?

• Nucleus

• Ribosome

• Mitochondria

• Endoplasmic Reticulum