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Built around the concept in “Which one among the following quantities is always scalar?”, this bilingual General Science item checks whether a learner can connect a scientific term with its exact property, mechanism or function. The verified answer is Power.
Option A, Power, matches the evidence in the stem. Power has magnitude only and no direction. The alternatives Force, Momentum and Velocity are legitimate scientific terms, but each belongs to a different function, property, material or context. A useful verification is to state the definition in one sentence and ask whether the selected option satisfies every part of it.
FAQ
Common questions and clear answers for this topic.
Power. Power has magnitude only and no direction.
Use the defining property and mechanism from science.
Force, Momentum, Velocity belong to different functions, properties or contexts.
Connect “Which one among the following quantities is always scalar?” with Power and the supporting mechanism.
General Science covers basic concepts in Physics, Chemistry, Biology, and Earth Science. It is an important section in competitive exams like SSC CGL, UPSC Prelims, Railway NTPC, and Defence exams. Questions include scientific laws, inventions, human body systems, chemical reactions, and everyday science phenomena. NCERT Science books from Class 6 to 10 are recommended.
Newton's Three Laws of Motion: 1) First Law (Law of Inertia) - An object remains at rest or in uniform motion unless acted upon by an external force. 2) Second Law - Force equals mass times acceleration (F=ma). 3) Third Law - For every action there is an equal and opposite reaction. These laws are fundamental to Physics and frequently asked in SSC CGL, Railway, and NDA exams.
