Scroll to the bottom to access the NEET Physics questions from the chapter Gravitation. For tips to learn the chapter, please read through this blog before starting the test.
Gravitation, a fundamental concept in physics, is crucial for students preparing for the NEET exam. This concept explains the force that attracts two bodies towards each other. Understanding gravitation is essential not only for the NEET Physics section but also forms the basis for many topics in astronomy and space science. Here's a comprehensive guide to help you grasp the essentials of gravitation and prepare effectively for your NEET exam.
Key Concepts in Gravitation
Universal Law of Gravitation: Proposed by Sir Isaac Newton, this law states that every particle in the universe attracts every other particle with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
Gravitational Force: The force of attraction between two masses. It is a central force acting along the line joining the centers of two bodies.
Gravitational Field: A region around a mass in which another mass experiences a force of gravitational attraction.
Gravitational Potential Energy: The potential energy a mass possesses due to its position in a gravitational field.
Kepler's Laws of Planetary Motion: These laws describe the motion of planets around the sun. They are crucial for understanding orbits and satellite dynamics.
Tips to Excel in Gravitation for NEET
Understand the Basics: Start with a clear understanding of the fundamental concepts. Gravitation is not just about memorizing formulas; it's about understanding the principles that govern the movement of bodies due to gravity.
Refer to NCERT Textbooks: The NCERT Physics textbook provides a concise and precise explanation of gravitation. It's crucial for NEET aspirants to thoroughly go through these explanations as they are directly aligned with the syllabus.
Solve Numerical Problems: Practice solving numerical problems related to gravitational force, field, potential energy, and motion of planets and satellites. This will help you apply the concepts you've learned and improve your problem-solving skills.
Use Diagrams and Visuals: Gravitation involves understanding spatial relationships between celestial bodies. Use diagrams and visuals to better understand orbits, forces, and field lines.
Review Sample Questions: Go through NEET-like questions from various question banks to familiarize yourself with the exam pattern and the level of complexity of questions asked.
Understand Applications: Be aware of the practical applications of gravitation, such as satellite communication, GPS technology, and space exploration. This not only helps in answering application-based questions but also makes learning more interesting.
Revise Regularly: Regular revision is key to retaining concepts. Make short notes of formulas and key points for quick revision before the exam.
Take Mock Tests: Attempt mock tests and previous years' papers under exam conditions. This will help you manage your time efficiently and identify areas where you need improvement.
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Acceleration due to gravity increases/decreases with increasing altitude. A) Increases B) Decreases C) Remains constant D) First increases then decreases
Acceleration due to gravity increases/decreases with increasing depth (assume the earth to be a sphere of uniform density). A) Increases B) Decreases C) Remains constant D) First increases then decreases
Acceleration due to gravity is independent of the mass of the earth/mass of the body. A) Mass of the earth B) Mass of the body C) Both A and B D) Neither A nor B
The formula –G Mm(1/r2 – 1/r1) is more/less accurate than the formula mg(r2 – r1) for the difference of potential energy between two points r2 and r1 distance away from the centre of the earth. A) More B) Less C) Equally accurate D) Cannot be determined
Consider an object that needs to escape Earth's gravitational pull. Which of the following factors does the escape velocity not depend on? A) The mass of the object B) The density of the object C) The energy source of the object D) None of the above
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