When a sheet of paper is crumbled into a ball, then its density increases. Hence, resistance to its motion through the air decreases and it falls faster than the sheet of paper. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
When a sheet of paper is crumbled into a ball, then its density increases. Hence, resistance to its motion through the air decreases and it falls faster than the sheet of paper.
Weight of a body on the Earth is given by W = mg Where, m = Mass of the body g = Acceleration due to gravity The value of g is greater at poles than at the equator. Therefore, gold at the equator weighs less than at the poles. Hence, Amit’s friend will not agree with the weight of the gold bought. FRead more
Weight of a body on the Earth is given by W = mg
Where,
m = Mass of the body
g = Acceleration due to gravity
The value of g is greater at poles than at the equator. Therefore, gold at the equator weighs less than at the poles. Hence, Amit’s friend will not agree with the weight of the gold bought.
Gravitational force between the earth and an object is known as the weight of the object. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
Gravitational force between the earth and an object is known as the weight of the object.
When objects fall towards the Earth under the effect of gravitational force alone, then they are said to be in free fall. Acceleration of free fall is 9.8 ms−2, which is constant for all objects (irrespective of their masses). For more answers visit to website: https://www.tiwariacademy.com/ncert-soRead more
When objects fall towards the Earth under the effect of gravitational force alone, then they are said to be in free fall. Acceleration of free fall is 9.8 ms−2, which is constant for all objects (irrespective of their masses).
The universal law of gravitation proves that every object in the universe attracts every other object. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
The universal law of gravitation proves that every object in the universe attracts every other object.
F is directly proportional to the product of masses of the objects. If the masses of both the objects are doubled, then the gravitational force becomes four times the original value. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
F is directly proportional to the product of masses of the objects. If the masses of both the objects are doubled, then the gravitational force becomes four times the original value.
F is inversely proportional to the square of the distances between the objects. If the distance is doubled, then the gravitational force becomes one-fourth of its original value. Similarly, if the distance is tripled, then the gravitational force becomes one-ninth of its original value. For more ansRead more
F is inversely proportional to the square of the distances between the objects. If the distance is doubled, then the gravitational force becomes one-fourth of its original value.
Similarly, if the distance is tripled, then the gravitational force becomes one-ninth of its original value.
F is directly proportional to the masses of the objects. If the mass of one object is doubled, then the gravitational force will also get doubled. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
F is directly proportional to the masses of the objects. If the mass of one object is doubled, then the gravitational force will also get doubled.
The Earth and the moon experience equal gravitational forces from each other. However, the mass of the Earth is much larger than the mass of the moon. Hence, it accelerates at a rate lesser than the acceleration rate of the moon towards the Earth. For this reason, the Earth does not move towards theRead more
The Earth and the moon experience equal gravitational forces from each other. However, the mass of the Earth is much larger than the mass of the moon. Hence, it accelerates at a rate lesser than the acceleration rate of the moon towards the Earth. For this reason, the Earth does not move towards the moon.
According to the universal law of gravitation, two objects attract each other with equal force, but in opposite directions. The Earth attracts the moon with an equal force with which the moon attracts the earth. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9Read more
According to the universal law of gravitation, two objects attract each other with equal force, but in opposite directions. The Earth attracts the moon with an equal force with which the moon attracts the earth.
Why will a sheet of paper fall slower than one that is crumpled into a ball?
When a sheet of paper is crumbled into a ball, then its density increases. Hence, resistance to its motion through the air decreases and it falls faster than the sheet of paper. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
When a sheet of paper is crumbled into a ball, then its density increases. Hence, resistance to its motion through the air decreases and it falls faster than the sheet of paper.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
Amit buys few grams of gold at the poles as per the instruction of one of his friends. He hands over the same when he meets him at the equator. Will the friend agree with the weight of gold bought? If not, why? [Hint: The value of g is greater at the poles than at the equator.]
Weight of a body on the Earth is given by W = mg Where, m = Mass of the body g = Acceleration due to gravity The value of g is greater at poles than at the equator. Therefore, gold at the equator weighs less than at the poles. Hence, Amit’s friend will not agree with the weight of the gold bought. FRead more
Weight of a body on the Earth is given by W = mg
Where,
m = Mass of the body
g = Acceleration due to gravity
The value of g is greater at poles than at the equator. Therefore, gold at the equator weighs less than at the poles. Hence, Amit’s friend will not agree with the weight of the gold bought.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
What do we call the gravitational force between the earth and an object?
Gravitational force between the earth and an object is known as the weight of the object. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
Gravitational force between the earth and an object is known as the weight of the object.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
What is the acceleration of free fall?
When objects fall towards the Earth under the effect of gravitational force alone, then they are said to be in free fall. Acceleration of free fall is 9.8 ms−2, which is constant for all objects (irrespective of their masses). For more answers visit to website: https://www.tiwariacademy.com/ncert-soRead more
When objects fall towards the Earth under the effect of gravitational force alone, then they are said to be in free fall. Acceleration of free fall is 9.8 ms−2, which is constant for all objects (irrespective of their masses).
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
What is the importance of universal law of gravitation?
The universal law of gravitation proves that every object in the universe attracts every other object. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
The universal law of gravitation proves that every object in the universe attracts every other object.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
What happens to the force between two objects, if the masses of both objects are doubled?
F is directly proportional to the product of masses of the objects. If the masses of both the objects are doubled, then the gravitational force becomes four times the original value. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
F is directly proportional to the product of masses of the objects. If the masses of both the objects are doubled, then the gravitational force becomes four times the original value.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
What happens to the force between two objects, if the distance between the objects is doubled and tripled?
F is inversely proportional to the square of the distances between the objects. If the distance is doubled, then the gravitational force becomes one-fourth of its original value. Similarly, if the distance is tripled, then the gravitational force becomes one-ninth of its original value. For more ansRead more
F is inversely proportional to the square of the distances between the objects. If the distance is doubled, then the gravitational force becomes one-fourth of its original value.
Similarly, if the distance is tripled, then the gravitational force becomes one-ninth of its original value.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
What happens to the force between two objects, if the mass of one object is doubled?
F is directly proportional to the masses of the objects. If the mass of one object is doubled, then the gravitational force will also get doubled. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
F is directly proportional to the masses of the objects. If the mass of one object is doubled, then the gravitational force will also get doubled.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
If the moon attracts the earth, why does the earth not move towards the moon?
The Earth and the moon experience equal gravitational forces from each other. However, the mass of the Earth is much larger than the mass of the moon. Hence, it accelerates at a rate lesser than the acceleration rate of the moon towards the Earth. For this reason, the Earth does not move towards theRead more
The Earth and the moon experience equal gravitational forces from each other. However, the mass of the Earth is much larger than the mass of the moon. Hence, it accelerates at a rate lesser than the acceleration rate of the moon towards the Earth. For this reason, the Earth does not move towards the moon.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
The earth and the moon are attracted to each other by gravitational force. Does the earth attract the moon with a force that is greater or smaller or the same as the force with which the moon attracts the earth? Why?
According to the universal law of gravitation, two objects attract each other with equal force, but in opposite directions. The Earth attracts the moon with an equal force with which the moon attracts the earth. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9Read more
According to the universal law of gravitation, two objects attract each other with equal force, but in opposite directions. The Earth attracts the moon with an equal force with which the moon attracts the earth.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/