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FAQs on Mindmap: Gravitation - Subject-Wise Mind Maps for Class 9

1. What is gravitation?
Ans. Gravitation is the force of attraction that exists between any two objects with mass. It is responsible for the phenomena like the falling of objects, the motion of planets, and even the structure of the universe.
2. Who discovered the concept of gravitation?
Ans. The concept of gravitation was discovered by Sir Isaac Newton in the late 17th century. He formulated the laws of motion and the law of universal gravitation, which explained the force of gravity between two objects.
3. How does the law of universal gravitation work?
Ans. The law of universal gravitation states that every object in the universe attracts every other object with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
4. What are some practical applications of gravitation?
Ans. Gravitation has several practical applications in our daily lives. Some examples include the motion of satellites, the tides in the ocean, the operation of pendulum clocks, and even the ability to weigh objects using a scale.
5. How does gravitation affect the motion of planets?
Ans. Gravitation is responsible for the motion of planets in our solar system. The gravitational pull of the Sun keeps the planets in their orbits, causing them to revolve around it. The strength of gravity also determines the speed at which planets move in their orbits.
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