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State PCS PYQPrelims 2022

BPSC – Combined Competitive Examination · Question 117

Who first defined motion (scientifically)?

  1. Newton
  2. Kepler
  3. Ptolemy
  4. Galileo
  5. None of the above / More than one of the above
Show answer & explanation

Answer: (D) Galileo

Explanation

Galileo's experiments on inclined planes and falling bodies laid the foundation of kinematics.

  • (A) Incorrect

    Wrong: Newton formulated laws later, building on Galileo.

  • (B) Incorrect

    Wrong: laws of planetary motion.

  • (C) Incorrect

    Wrong: geocentric model.

  • (D) Correct

    Correct: Galileo first described motion and inertia experimentally.

  • (E) Incorrect

    Wrong: only one of the options A–D is correct.