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SubjectsGeneral SciencePhysicsChapter 1 — Mechanics1.1 Motion & Its Laws

Topic 1.1 · General Science · Mechanics

Motion & Its Laws

Motion & Its Laws is studied as part of "Mechanics" (Physics) in General Science. Mechanics covers motion, the laws of force, work, energy and gravitation — the classical core of physics.

In the examination context, motion & its laws carries conceptual questions that test both factual recall and analytical understanding. Revise this topic in sequence with the rest of the chapter so that chronological and thematic links are clear.

Important Facts

Newton's 1st law
Law of inertia
Newton's 3rd law
Every action has an equal and opposite reaction
SI unit of force
Newton (N)
Acceleration due to gravity
9.8 m/s² on Earth

Key Points

  • Newton's 1st law — Law of inertia
  • Newton's 3rd law — Every action has an equal and opposite reaction
  • SI unit of force — Newton (N)
  • Acceleration due to gravity — 9.8 m/s² on Earth

Important Names

Isaac NewtonGalileo Galilei

Important Dates

1687Newton's Principia published
Exam-Oriented Notes
  • »Associate each law with its everyday example: recoil of a gun (3rd law), a coin on a moving bus (inertia).

Related topics

1.2 Work, Energy & Power1.3 Gravitation1.4 Simple Machines & Friction
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