Physics
Grade-10
Easy
Question
We can calculate gravitational acceleration based on:
- Newton’s 3rd law
- Newton’s 2nd law
- Newton’s 1st law
- None of these
Hint:
This law of force and acceleration.
The correct answer is: Newton’s 2nd law
The correct option is b)Newton’s 2nd law.
According to Newton's second law of motion, also called the law of force and acceleration, when a force is applied to an object, it accelerates according to the formula net force = mass x acceleration. So, the acceleration of an object is directly proportional to its force and inversely proportional to its mass.
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Gravitational acceleration depends on which of the following factors:
Gravitational acceleration depends on which of the following factors:
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For a particular force, the acceleration of a body ___ the mass.
For a particular force, the acceleration of a body ___ the mass.
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Two bodies of equal masses 'm' kg, separated by 'r' meters are attracted by a gravitational force F. Suppose the mass of a body is doubled and their distance of separation is tripled. What will be the ratio of their initial and final force of attraction?
Two bodies of equal masses 'm' kg, separated by 'r' meters are attracted by a gravitational force F. Suppose the mass of a body is doubled and their distance of separation is tripled. What will be the ratio of their initial and final force of attraction?
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How would the value of the gravitational constant, G = 6.673
10 - 11 Nm2/kg2 vary if we consider the andromeda galaxy.
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Which of the following would happen to the moon if the gravity of the earth is lost someday?
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Which of the following is true about the motion of the moon around the earth?
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Which of the following is true about the motion of the moon around the earth?
(a) The moon falls towards the center of the earth at every point of its motion
(b) The moon hits the surface of the earth
(c) It does not hit the surface of the earth because of the spherically curved surface
PhysicsGrade-10
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The force of gravity between two bodies ___ when the distance between them _____.
The force of gravity between two bodies ___ when the distance between them _____.
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Which of the following the universal law of gravitation does not explain?
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PhysicsGrade-10
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In which direction does a falling object on the earth move?
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PhysicsGrade-10
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Which of the following is true about the centripetal force?
(a) It pulls an object towards the other.
(b) It keeps a body moving in a circular path.
(c) It acts perpendicular to the motion of the body.
(d) It is an attractive force.
Which of the following is true about the centripetal force?
(a) It pulls an object towards the other.
(b) It keeps a body moving in a circular path.
(c) It acts perpendicular to the motion of the body.
(d) It is an attractive force.
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If there is a gravitational force of attraction between any two bodies, why do the bodies not stick together?
If there is a gravitational force of attraction between any two bodies, why do the bodies not stick together?
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What is the nature of gravitational force?
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PhysicsGrade-10
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Calculate the force of gravitation due to earth on a man weighing 100 kg standing on the ground? (Mass of earth 
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What happens to the gravitational force (F) between two bodies if their masses are doubled, and the distance between them is also doubled?
What happens to the gravitational force (F) between two bodies if their masses are doubled, and the distance between them is also doubled?
PhysicsGrade-10
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Why do satellites not fall back to the Earth from their respective orbits?
(a) They are under the constant influence of gravitational force due to the Earth.
(b) They are under the constant influence of centripetal force.
(C)The centripetal force is supplied by the gravitational force
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(a) They are under the constant influence of gravitational force due to the Earth.
(b) They are under the constant influence of centripetal force.
(C)The centripetal force is supplied by the gravitational force
PhysicsGrade-10
