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Gravitation Solved Examples for JEE Video Lecture | Physics for JEE Main & Advanced
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FAQs on Gravitation Solved Examples for JEE Video Lecture - Physics for JEE Main & Advanced
| 1. What is the formula for gravitational force between two objects? |  |
Ans. The formula for gravitational force between two objects is given by Newton's law of universal gravitation, which states that the force of attraction between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers. Mathematically, it can be expressed as F = G * (m1 * m2) / r^2, where F is the gravitational force, G is the gravitational constant, m1 and m2 are the masses of the objects, and r is the distance between their centers.
| 2. How does the gravitational force vary with distance between two objects? | |
Ans. The gravitational force between two objects decreases as the distance between them increases. This relationship is described by the inverse square law, which states that the gravitational force is inversely proportional to the square of the distance between the centers of the two objects. Therefore, as the distance between the objects increases, the gravitational force decreases.
| 3. What is the difference between mass and weight in the context of gravitation? | |
Ans. Mass is a measure of the amount of matter in an object and is constant regardless of the object's location, while weight is the force of gravity acting on an object and varies based on the gravitational field strength of the location. In the context of gravitation, mass determines the strength of the gravitational force an object experiences, while weight is the force with which an object is pulled towards the center of the Earth or another celestial body.
| 4. How does the gravitational force affect the motion of planets in the solar system? | |
Ans. The gravitational force between planets and the Sun is responsible for keeping the planets in their orbits. This force provides the centripetal force required to maintain the circular motion of the planets around the Sun. The gravitational force between planets also influences their orbital speeds and distances from the Sun, leading to the stable configuration of the solar system.
| 5. What is the significance of the gravitational constant in the formula for gravitational force? | |
Ans. The gravitational constant (G) is a fundamental constant that determines the strength of the gravitational force between two objects with a given mass and separation distance. It serves as a conversion factor that relates the masses of objects to the force of attraction between them. The value of the gravitational constant is crucial for accurately calculating gravitational forces in various physical scenarios.
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Dec 18, 2024 Last updated |
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