Maharashtra State Board 10th Science and Technology Part I Question Bank

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Questions and Answers

What is the orbit of a planet revolving around a star?

towards the focal point
elliptical (correct)
linear
circular

The square of a planet's period of revolution around the sun is directly proportional to the ………. of the mean distance of the planet from the sun.

square (correct)
square root
cube
cube root

The gravitational force between two bodies is directly proportional to the product of the masses of those bodies and is ……….of the distance between them.

inversely proportional to the square root
inversely proportional to the square (correct)
directly proportional to the square
inversely proportional to the cube

The value of universal gravitational constant (G) in SI unit is…………

<p>$6.673× 10^{-11} Nm^2/kg^2$ (B)</p> Signup and view all the answers

The …………….force is much weaker than other forces in nature.

<p>gravitational (D)</p> Signup and view all the answers

Flashcards

Planet's Orbit

The path a planet takes around a star, shaped like an oval.

Kepler's Third Law

Kepler's third law states that the square of the time a planet takes to orbit the sun is directly proportional to the cube of its average distance from the sun.

Gravitational Force

The force of attraction between any two objects with mass. It depends on the mass of the objects and the distance between them.

Newton's Law of Universal Gravitation

The force of attraction between any two objects with mass is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.

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Gravitational Force (Weakest Force)

The gravitational force is the weakest of the four fundamental forces in nature, but it acts over extremely large distances.

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Study Notes

Maharashtra State Government Education Department

The department is responsible for education in the state of Maharashtra, India
The department's address is Sadashiv Peth, Kumthe Kar Marg, Pune 411030
The contact number is (020) 2447 6938, and the email address is [email protected]