earth gravitational force working model science project - diy - physics project | DIY pandit
earth gravitational force working model science project - diy - physics project for exhibition #earth #gravitationalforce #workingmodel #scienceproject #scienceexhibition #sciencefair #physicsproject #diypandit #papercups This video presents a creative and easy-to-make Earth Gravitational Force Working Model, ideal for science exhibitions and school projects. This model helps to visually demonstrate how gravity works and how the Earth attracts objects towards its center. Using simple materials like a thermocol ball (Earth), small ball (object), thread, and magnets or support structure, this project clearly explains the concept of gravitational force in an interactive way. When the object is released, it moves toward the Earth model, representing how gravity pulls everything downward. This project is based on the fundamental concept discovered by Isaac Newton, which states that every object in the universe attracts every other object with a force called gravity. The strength of this force depends on the mass of the objects and the distance between them. This working model is perfect for beginners, easy to build, and highly effective for explaining complex physics concepts in a simple manner. It is a great choice for science fairs, classroom demonstrations, and viva exams. 10 Viva Questions & Answers 1. What is gravitational force? It is the force by which the Earth attracts objects towards its center. 2. Who discovered gravity? Sir Isaac Newton discovered gravity. 3. What is the formula of gravitational force? 𝐹 = 𝐺 𝑚 1 𝑚 2 𝑟 2 F=G r 2 m 1 m 2 4. What do m₁ and m₂ represent? They represent the masses of two objects. 5. What does ‘r’ represent? It is the distance between the centers of two objects. 6. Why do objects fall on Earth? Because Earth’s gravity pulls them downward. 7. Does gravity act only on Earth? No, gravity acts everywhere in the universe. 8. What happens to gravity if distance increases? Gravity decreases as distance increases. 9. What is the SI unit of gravitational force? Newton (N). 10. What is the importance of gravity? It keeps us on Earth and controls the motion of planets.
