Scientific Aptitude Flashcards
7 cards from real NAT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Scientific Aptitude flashcards as text
Which of the following best describes the process of osmosis?
Answer: Movement of water molecules through a semipermeable membrane from low to high solute concentration
Osmosis is the passive movement of water through a semipermeable membrane from a region of lower solute concentration to higher solute concentration.
What is the unit of electrical resistance in the SI system?
Answer: Ohm
The ohm (Ω) is the SI unit of electrical resistance, defined as the resistance that produces a potential difference of one volt when one ampere flows through it.
Which law states that the volume of a gas is directly proportional to its absolute temperature at constant pressure?
Answer: Charles's Law
Charles's Law states that at constant pressure, the volume of a fixed amount of gas is directly proportional to its absolute (Kelvin) temperature.
An object with a mass of 10 kg is accelerated at 5 m/s². What is the net force acting on it?
Answer: 50 N
By Newton's Second Law, Force = mass × acceleration = 10 kg × 5 m/s² = 50 N.
Which part of the cell is responsible for producing ATP through cellular respiration?
Answer: Mitochondria
Mitochondria are the sites of cellular respiration where ATP is produced through processes like the Krebs cycle and oxidative phosphorylation.
What type of chemical bond is formed when electrons are shared between two atoms?
Answer: Covalent bond
A covalent bond is formed when two atoms share one or more pairs of electrons, as opposed to ionic bonds where electrons are transferred.
Which of the following is a property of acids?
Answer: They have a sour taste and react with metals to produce hydrogen gas
Acids have a pH below 7, taste sour, turn blue litmus paper red, and react with metals to produce hydrogen gas.