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Motion and Gravity Video Lecture | Famous Books for UPSC Exam (Summary & Tests)

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FAQs on Motion and Gravity Video Lecture - Famous Books for UPSC Exam (Summary & Tests)

1. What is the relationship between motion and gravity?
Ans. Motion and gravity have a close relationship as gravity is the force that causes objects to move. It is the force that pulls objects towards the center of the Earth or any other celestial body. Without gravity, there would be no motion as objects would remain stationary.
2. How does gravity affect motion on Earth?
Ans. Gravity affects motion on Earth by exerting a force on objects, causing them to accelerate towards the Earth's surface. This acceleration is approximately 9.8 meters per second squared. It means that objects fall towards the ground at a faster and faster rate with each passing second.
3. Is there gravity in space?
Ans. Yes, there is gravity in space. Although space is often considered a vacuum, it is not completely devoid of gravity. Gravity exists everywhere in the universe, including space. However, the strength of gravity decreases with increasing distance from massive objects such as planets or stars.
4. How does gravity influence the motion of celestial bodies?
Ans. Gravity plays a crucial role in determining the motion of celestial bodies. It causes planets, moons, and other objects to orbit around larger celestial bodies, such as the sun. The gravitational pull between these objects keeps them in their respective orbits and governs their motion within the solar system.
5. Can gravity affect the trajectory of projectiles?
Ans. Yes, gravity significantly affects the trajectory of projectiles. When an object is launched into the air, gravity constantly pulls it downward, causing it to follow a curved path called a parabola. This influence of gravity on the projectile's motion determines its range, height, and time of flight.
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