Ah, so you’ve given in to the notion that becoming an engineer is one of the best things that can happen to your career. You’ve started preparing for the Joint Entrance Examination (JEE 2020), the largest entrance examination for engineering aspirants all around the country. Usually, this happens around class 11, with classes 9 and 10 being the foundational years for aspirants. In class 11, the magic happens, and the magic of physics usually starts with kinematics.
What exactly is kinematics?
Kinematics is one of the first topics that you learn in class 11, important both from the school examination, and the JEE Main point of view. Formally, kinematics is defined as the study of the motion of points, objects, and groups of objects, without studying the causes of motion, i.e. forces. It is one of the easiest yet most important topics in physics. It is perhaps one of the most popular branches of classical mechanics, and why not, it lays the foundation for everything else that you study in physics.
The key pointers to take away from kinematics are that-
- It concerns the motion and trajectories of points, lines, and other geometric objects.
- Kinematics can be represented as purely mathematical equations, owing to its simplicity.
- Acceleration, speed, velocity, time, and displacement are few of the numerical quantities that we can calculate using kinematic equations.
Importance of kinematics from the examination and educational perspective
Kinematics is the first topic that students study in physics in class 11. This comes with good reason since it is the prerequisite for everything that students learn beyond that point. All other chapters and concepts of classical mechanics are based on kinematics, and understanding the fundamentals is crucial to understanding the rest of mechanics. Since it consists largely of numerical problems, beginners find it easy and interesting to solve questions on kinematics.
From an examination point of view, kinematics is crucial for both school and competitive examinations. For instance, there are around 4-5 questions directly from kinematics in JEE, making it worth around 16-20 marks. Even if you can answer 3 or 4 of them correctly, it is sure to improve your score in JEE 2020.
Kinematics for JEE 2020 preparation concerns the following topics:
- Motion in one dimension
- Equations of motion, and the acceleration under gravity
- Projectile motion
- Circular and relative motion
Some tips to help you prepare kinematics to score well in JEE and school exams
Kinematics, being one of the easiest topics in physics, is often taken lightly by students. The first and foremost tip would be not to do so and give enough practice to the topic. Remembering other bits and pieces of information, such as-
- Vertical and horizontal components being independent of each other
- No horizontal acceleration unless stated
- Time calculated for the vertical component being used in horizontal equations too
And other tidbits would give you those vital extra marks that you need to make it to your dream institute.
So, keep the importance of kinematics in mind, study it well with the recorded video lectures by Aakash iTutor, and have fun! With Aakash iTutor, you can choose subject-wise video lectures for JEE and can get strong command on all topics for JEE Main 2020 preparation.