Laws of Motion chapter is best known for its foundation for understanding classical mechanics and also forms the underlying principle of Newton’s three laws of motion. To have an adequate understanding of this chapter along with the weightage candidates can check this article.
Laws of Motion Weightage in JEE Mains 2025: For candidates who are preparing for JEE Mains 2025, chapters like laws of motion are crucial for understanding more complex topics like energy, momentum, fluid dynamics and gravitation. Moreover, a proper grasp of this topic will aid candidates in enhancing their problem-solving skills which require a thorough understanding of basic concepts like force, tension, acceleration, friction and mass. The weightage of laws of motion varies each year in JEE Main , however, 1 to 2 questions can be expected by candidates from this topic. The expected weightage of laws and Motion in JEE Main 2025 is 6%. Candidates can check this article to have an in-depth knowledge about the JEE Mains 2025 Weightage of Laws of Motion.
Also Read: JEE Main Previous Year Question Paper
Expected Weightage of Laws of Motion in JEE Main 2025
Candidates can check this table to know about the expected Laws of Motion Weightage in JEE Main 2025 .
Topics | Expected Weightage | Expected Number of Questions |
|---|---|---|
Laws of Motion | 6% | 1 to 2 |
Optics | 12% | 3 to 4 |
EMI and AC | 15% | 4 to 5 |
Waves and sounds | 9% | 2 to 3 |
Kinematics | 6% | 1 to 2 |
Electrostatics and Capacitors | 12% | 3 to 4 |
COM and Rotational Mechanics | 18% | 5 to 6 |
Modern Physics | 12% | 2 to 3 |
Heat and Thermodynamics | 15% | 4 to 5 |
Current Electricity | 9% | 2 to 3 |
Units and Dimensions and Errors and Measurements | 6% | 1 to 2 |
Waves and Sounds | 6% | 1 to 2 |
MEC and Magnetism | 6% | 1 to 2 |
Fluid Mechanics | 6% | 1 to 2 |
Download: JEE Main Physics Syllabus PDF
Weightage of Laws of Motion in Last Five Years in JEE Mains
Students can check the weightage of Laws of Motion for the last five years.
Year | Number of Questions Asked |
|---|---|
2024 | 2 |
2023 | 1 |
2022 | 1 |
2021 | 2 |
2018 | 1 |
Also Read | JEE Main Deleted Syllabus 2025
How to Study Laws of Motion Effectively for JEE Mains 2025?
Here is a shortcut to study Laws of Motion more effectively for JEE Mains 2025.
- In-depth study of Newton’s Law of Motion
Laws | Shortcut |
|---|---|
First Law (Law of Inertia) | Fnet = 0 Body is either moving in constant velocity or is at rest |
Second Law (F = ma) | Use free body diagrams |
Third Law (Action-Reaction Law) | Consider pair of forces |
Free Body Diagrams are always advisable
For questions based on forces, always use free-body diagrams to identify and label forces like weight, friction, applied force, and tension.
Friction Forces
Forces | Equations |
|---|---|
Kinetic Friction | Fk = μkN |
Static Friction | Fs ≤ μkN |
- Capitalise on Work-Energy and Impulse-Momentum Theorems whenever required
Use these theorems when forces are not constant or when time is not at all given.
Theorem | Equation |
|---|---|
Impulse-Momentum Theorem | J = Δ p |
Work-Energy Theorem | Wnet = ΔKE |
Key Points about Laws of Motion
Candidates can have a look at the below table to learn more about the laws of motion.
Particulars | Details |
|---|---|
Frequency of Question Each Year | 1 to 2 |
Marks Allotted Each Year | 4 to 8 |
Interlinked Concepts | Work, Energy and Power Kinematics Rotational Motion Newton’s Law of Motion |
Expected Question Type | Conceptual Questions and Complex Questions |
Important Topics under Laws of Motion | Pulley System Forces on Inclined Planes Frictional Forces |
High Weightage Topics of Physics
Candidates can check the list of important physics topics from the table below.
Important Topics | |
|---|---|
Magnetism | Thermodynamics |
Laws of Motion | Current Electricity |
Optics | EMI and AC |
Electrostatics and Capacitors | COM and Rotational Mechanics |
Important Textbooks for Laws of Motion
Students must refer to the following set of books to study laws of motion.
Name of the Book | Name of the Author |
|---|---|
Objective Physics | D.C. Pandey |
Problems in General Physics | I.E. Irodov |
Concepts of Physics | H.C. Verma |
Problems and Solutions in Physics | Shashi Bhushan Tiwari |
New Pattern Physics | D.B. Singh |
Fundamentals of Physics | Halliday, Resnick, and Walker |
Understanding Physics | D.C. Pandey |
Physics for JEE (Main) | B.M. Sharma |
Physics Galaxy | Ashish Arora |
University Physics | Sears and Zemansky |
Also Check:
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