JEE Main 2022 Session 1 and Session 2 just completed. Students are now eagerly waiting for JEE Advanced 2022. Those who are preparing for JEE Main 2023 must buckle up their shoes and get ready for the challenge. Out of the enormous syllabus of JEE Main, Mechanics hold a large sum (around 23% weightage across JEE Main and Advanced). It includes some interesting topics like motion, vectors, laws of friction, work-energy theorem, laws of motion, gravitation, etc. Today, we are going to share some great tips on how to revise Mechanics for JEE without forgetting any concepts!
First, let us go through the Mechanics syllabus for JEE 2022-2023.
Mechanics JEE Syllabus 2022-2023
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Mechanics JEE Syllabus 2022-2023 |
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Physics and Measurement (Weightage 5.33%) |
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Physics, technology and society, S I Units, fundamental and derived units, least count |
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Accuracy and precision of measuring instruments, Errors in measurement |
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Dimensions of Physics quantities, dimensional analysis and its applications |
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Kinematics (Weightage 1.67%) |
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The frame of reference, motion in a straight line, Position- time graph, speed and velocity; Uniform and non-uniform motion, average speed and instantaneous velocity, uniformly accelerated motion, velocity-time, position-time graph, relations for uniformly accelerated motion |
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Scalars and Vectors, Vectors - Addition and subtraction, zero vector, scalar and vector products, Unit Vector, Resolution of a Vector |
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Relative Velocity, Motion in a plane |
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Projectile Motion |
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Uniform Circular Motion |
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Laws of Motion (Weightage 2.67%) |
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Force and inertia, Newton’s First law of motion, Momentum, Newton’s Second Law of motion, Impulses; Newton’s Third Law of motion |
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Law of conservation of linear momentum and its applications |
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Equilibrium of concurrent forces |
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Static and Kinetic friction, laws of friction, rolling friction |
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Dynamics of uniform circular motion, centripetal force and its applications |
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Work, Energy and Power (Weightage 3.67%) |
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Work done by a content force and a variable force |
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Kinetic and potential energies |
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Work-energy theorem |
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Power |
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The potential energy of spring |
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Conservation of mechanical energy, conservative and neoconservative forces |
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Elastic and inelastic collisions in one and two dimensions |
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Rotational Motion (Weightage 6.33%) |
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Centre of the mass of a two-particle system, Centre of the mass of a rigid body |
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Basic concepts of rotational motion; a moment of a force; torque, angular momentum, conservation of angular momentum and its applications; the moment of inertia, the radius of gyration |
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Values of moments of inertia for simple geometrical objects, parallel and perpendicular axes theorems and their applications |
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Rigid body rotation equations of rotational motion |
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Gravitation (Weightage 3.33%) |
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The universal law of gravitation |
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Acceleration due to gravity and its variation with altitude and depth |
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Kepler’s law of planetary motion |
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Gravitational potential energy; gravitational potential |
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Escape velocity, Orbital velocity of a satellite |
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Geostationary satellites |
How to Prepare Mechanics for JEE?
As you can see the mechanics syllabus includes many different topics. So, if you are starting your preparations for JEE 2023 now, it is the perfect time to start with mechanics. Firstly, because mechanics is quite tough and the earlier you handle tough concepts the better. Secondly, you can easily apply the trick that we are going to share with you - the D-W-M-Y formula!
What is the D-W-M-Y formula?
This is a simple yet effective strategy that you can apply in mechanics or any other topic of the JEE syllabus that seems tough to you. Before we share the details of the formula, here are some things that you must know:
#1 You cannot expect yourself to remember every concept that you are studying today even after a month. The human mind tends to forget something that they have not studied for a long time. So, revision is necessary to brush up on all the concepts.
#2 You cannot complete the whole syllabus in one day. You need to divide your JEE syllabus of Mechanics or any other topic into small chunks so that you can study every concept with full concentration.
#3 Do not rely only on text-based information. You need to visualise concepts to remember them for long. Taking notes, creating mind maps, using flashcards, etc. are some of the best techniques to remember tough concepts like Mechanics.
Now, the D-W-M-Y formula! It stands for the following:
D: Day
W: Week
M: Month
Y: Year
So a concept that you learn today. You must revise it after D-W-M-Y that a Day, a Week, a Month, a Year! For example, if you studied the laws of motion on 12 July 2022. Then, you need to revise this topic as per the following:
Of course, you might revise a little earlier than a year. But, for the sake of simplicity, we are taking a year here. This formula will be suitable for Class 11 students who have started preparing for JEE 2024. But, if you are in Class 12 and have only one year to prepare, you may revise the topics a little earlier after a year, say, after 6 months, 8 months, or 10 months.
The main idea behind this DWMY formula is to remind you that you need to revise a topic after some time in order to remember it. This formula also helps you in formulating a study strategy for JEE. You can decide your schedule in advance and keep your learning on track.
How to revise Mechanics topics perfectly?
Now that you know when to revise JEE Mechanics concepts, you must also know how to revise them. So, here are a few important tips.
That’s all. These simple tricks will help you master the Mechanics for JEE Main and Advanced easily. If you need more help in understanding JEE Mechanics concepts, enrol in online coaching for JEE with us. We have the best teachers to guide you. Last, but not least, always be ready to learn. Do not consider learning or preparing for JEE a burden but a goal of your life!
Frequently Asked Questions
JEE Mechanics 2022-2023 syllabus includes the following main topics: Physics and Measurement, Kinematics, Laws of Motion, Work, Energy and Power, Rotational Motion, and Gravitation.
In the previous 10 years, around 80 questions from Mechanics have been asked in JEE papers.
You can enrol in the askIITians online coaching program for JEE and prepare under the guidance of our esteemed faculty. We provide personalised coaching for JEE Main and Advanced with comprehensive study materials, test series, live classes, doubt sessions, and a lot more!
Rigid Body Dynamics also known as Rotational Motion is one of the most important chapters in JEE Mechanics.