Home UPPSC Prelims 2025 Mock Test Series MCQs

Question

Which of the following laws is NOT one of Newton's Laws of Motion?

  1. Law of Inertia
  2. Law of Conservation of Energy
  3. Law of Acceleration
  4. Law of Action-Reaction

Answer:

Option B: Law of Conservation of Energy

Detailed Solution:

The correct answer is “Law of Conservation of Energy”.

Newton's Laws of Motion consist of the Law of Inertia (First Law), Law of Acceleration (Second Law), and Law of Action-Reaction (Third Law). The Law of Conservation of Energy is a separate principle.