Kepler's Laws and Newton's Law of Gravitation Quiz

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According to Kepler's laws of planetary motion, what is the shape of the orbit that a planet follows around the sun?

Parabolic

Circular

Elliptical (correct)

Hyperbolic

What does Kepler's second law of planetary motion, the Law of areas, state about the speed of a planet?

It decreases as it moves away from the sun

It remains constant

It varies in such a way that the radius vector drawn from the sun to planet sweeps out equal areas in equal times (correct)

It increases as it moves away from the sun

What does Newton's law of gravitation state about the force between particles?

It is inversely proportional to the product of their masses

It increases with the distance between particles

It is independent of their masses

It is directly proportional to the square of the distance between them (correct)

According to the characteristics of gravitational force, what is the nature of gravitational force between two bodies?

Radial Signup and view all the answers

What does the universal constant of gravitation represent?

The force of attraction between two particles of unit mass each separated by unit distance Signup and view all the answers

According to Kepler's laws, what is the magnitude of the force between two bodies?

Extremely small Signup and view all the answers

What is the acceleration produced in a body on account of the force of gravity known as?

Acceleration due to gravity Signup and view all the answers

How does the value of acceleration due to gravity change with altitude?

It gradually goes on decreasing Signup and view all the answers

What is the space around a body within which its gravitational force of attraction is experienced by other bodies called?

Gravitational field Signup and view all the answers

What is the intensity of the gravitational field of a body at a point in the field defined as?

The force experienced by a body of unit mass placed at that point Signup and view all the answers

What is the gravitational potential at a point in the gravitational field of a body defined as?

The work done in bringing a body of unit mass from infinity to that point Signup and view all the answers

What is the minimum velocity required to project a body vertically upward from the surface of the earth so that it comes out of the gravitational field of earth called?

Escape velocity Signup and view all the answers

What is a body which is revolving continuously in an orbit around a much larger body called?

Satellite Signup and view all the answers

What is the minimum velocity required to put a satellite into a given orbit around earth called?

Orbital velocity Signup and view all the answers

What is the satellite having the same time period of called?

Geostationary Satellite Signup and view all the answers

What is the work done in carrying a mass 'm' from infinity to a point at distance r called?

Potential energy Signup and view all the answers

What is Kepler's first law of planetary motion?

Each planet revolves around the sun in an elliptical orbit with the sun at one of the foci of the ellipse. Signup and view all the answers

According to Kepler's second law of planetary motion, what characteristic does the speed of a planet exhibit?

The speed of a planet varies in such a way that the radius vector drawn from the sun to the planet sweeps out equal areas in equal times. Signup and view all the answers

What does Newton's law of gravitation state about the force between particles?

It states that every particle in the universe attracts every other particle with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between them. Signup and view all the answers

What are the important characteristics of gravitational force between two bodies?

i) Gravitational force is a central force, acting along the line joining the centres of the interacting bodies. ii) It is independent of the nature of the intervening medium. iii) It does not depend upon the presence of other bodies. iv) It is valid for point objects and spherically symmetrical objects. v) The magnitude of the force is extremely small. Signup and view all the answers

What is the universal constant of gravitation numerically equal to?

The force of attraction between two particles of unit mass each separated by unit distance. Signup and view all the answers

What is the shape of the orbit that a planet follows around the sun, as per Kepler's laws of planetary motion?

Elliptical Signup and view all the answers

What is the acceleration produced in a body on account of the force of gravity known as?

Acceleration due to gravity Signup and view all the answers

What is the space around a body within which its gravitational force of attraction is experienced by other bodies called?

Gravitational field Signup and view all the answers

What is the intensity of the gravitational field of a body at a point in the field defined as?

The force experienced by a body of unit mass placed at that point Signup and view all the answers

What is the gravitational potential at a point in the gravitational field of a body defined as?

The amount of work done in bringing a body of unit mass from infinity to that point Signup and view all the answers

What is the work done in carrying a mass 'm' from infinity to a point at distance r called?

Gravitational potential energy Signup and view all the answers

How does the value of acceleration due to gravity change with altitude?

Gradually goes on decreasing Signup and view all the answers

What is the minimum velocity required to project a body vertically upward from the surface of the earth so that it comes out of the gravitational field of earth called?

Escape velocity Signup and view all the answers

What is a body which is revolving continuously in an orbit around a much larger body called?

Satellite Signup and view all the answers

What is the minimum velocity required to put a satellite into a given orbit around earth called?

Orbital velocity Signup and view all the answers

What is the satellite having the same time period of called?

Geostationary Satellite Signup and view all the answers

Kepler's Laws and Newton's Law of Gravitation Quiz

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Questions and Answers

According to Kepler's laws of planetary motion, what is the shape of the orbit that a planet follows around the sun?

What does Kepler's second law of planetary motion, the Law of areas, state about the speed of a planet?

What does Newton's law of gravitation state about the force between particles?

According to the characteristics of gravitational force, what is the nature of gravitational force between two bodies?

What does the universal constant of gravitation represent?

According to Kepler's laws, what is the magnitude of the force between two bodies?

What is the acceleration produced in a body on account of the force of gravity known as?

How does the value of acceleration due to gravity change with altitude?

What is the space around a body within which its gravitational force of attraction is experienced by other bodies called?

What is the intensity of the gravitational field of a body at a point in the field defined as?

What is the gravitational potential at a point in the gravitational field of a body defined as?

What is the minimum velocity required to project a body vertically upward from the surface of the earth so that it comes out of the gravitational field of earth called?

What is a body which is revolving continuously in an orbit around a much larger body called?

What is the minimum velocity required to put a satellite into a given orbit around earth called?

What is the satellite having the same time period of called?

What is the work done in carrying a mass 'm' from infinity to a point at distance r called?

What is Kepler's first law of planetary motion?

According to Kepler's second law of planetary motion, what characteristic does the speed of a planet exhibit?

What does Newton's law of gravitation state about the force between particles?

What are the important characteristics of gravitational force between two bodies?

What is the universal constant of gravitation numerically equal to?

What is the shape of the orbit that a planet follows around the sun, as per Kepler's laws of planetary motion?

What is the acceleration produced in a body on account of the force of gravity known as?

What is the space around a body within which its gravitational force of attraction is experienced by other bodies called?

What is the intensity of the gravitational field of a body at a point in the field defined as?

What is the gravitational potential at a point in the gravitational field of a body defined as?

What is the work done in carrying a mass 'm' from infinity to a point at distance r called?

How does the value of acceleration due to gravity change with altitude?

What is the minimum velocity required to project a body vertically upward from the surface of the earth so that it comes out of the gravitational field of earth called?

What is a body which is revolving continuously in an orbit around a much larger body called?

What is the minimum velocity required to put a satellite into a given orbit around earth called?

What is the satellite having the same time period of called?

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