Question 1 :
The ratio of the electric force between two electrons to the gravitational force between them is of the order of
Question 5 :
Which of the following forces is responsible for the flow of water in rivers?
Question 7 :
While falling freely from a height, as a body comes closer to the ground:
Question 8 :
Which of the following is/are equations of motion for a body projected vertically upwards.<br/>
Question 10 :
A feather of mass $m$ and a hammer of mass $100m$ are both released from rest from the same height on the surface of the moon. Mass of moon is $M$ and radius of moon is $R$. Both feather and hammer are released simultaneously. What is the acceleration of the hammer?
Question 11 :
<b>Assertion</b> : The acceleration due to gravity on the moon is one-sixth that on the earth.<br><b>Reason</b> : The law of gravitation is the same on both the moon and the earth.
Question 14 :
Assertion: A heavy object always falls faster than a light object when dropped from a height.
Reason: Gravitational force is proportional to the mass of an object.
Question 16 :
A planet whose mass and radius are both half of that of earth. Acceleration due to gravity(g) at its surface should be:
Question 17 :
Centripetal force is provided by the real forces acting on the body in motion.<br>
Question 18 :
A body weights 700 g wt on the surface of earth How much it weight on the surface of planet
whose mass is 1/7 and radius is half that of the earth
Question 19 :
If density of earth increases 4 times and its radius becomes half of what it is, our weight will:
Question 20 :
Assertion: The value of acceleration due to gravity does not depend upon the mass of the body.
Reason: Acceleration due to gravity is a constant quantity.
Question 22 :
Who among the following gave first the experimental value of <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5e914b1b88bd895386ecf805">
Question 23 :
At a point very near earth's surface, the acceleration due to gravity is g. What will be the acceleration due to gravity at the same point if the earth suddenly shrinks to half its radius without any change in its mass?
Question 24 :
The moon's radius is 1/4 that of the earth and its mass 1/80 times that of the earth. If g represents the acceleration due to gravity on the surface of the earth, then on the surface of the moon its value is:
Question 25 :
Motion of a body, thrown vertically upwards, is an example of
Question 27 :
In which of the following cases, the net force is not zero?<br>
Question 29 :
The gravitational pull exerted by the earth on a body is called its
Question 30 :
A body is at rest on the surface of the earth. Which of the following statement is correct?
Question 31 :
LANDSAT series of satellites move in near polar orbits at an altitude of
Question 34 :
If a Parrot starts flying upwards with an acceleration in an air tight cage, then the boy will feel the weight of the cage:
Question 35 :
Three bodies A, B and C are thrown simultaneously with the same speed  from the top of a building. A is thrown vertically upward, B horizontally and C,  vertically downward. All the three, on reaching the ground,  <br/>
Question 37 :
A mass M is broken in two parts: m and (M -m). Relation between m and M so that the force of gravitation between the two parts is maximum is.
Question 38 :
The weight of an astronaut, in an artificial satellite revolving around the earth, is
Question 39 :
During upward motion of a body projected vertically upward, the angle between velocity and gravitational acceleration $g$ is<br/>
Question 40 :
Three bodies each of mass 'm' are placed at the three corners of a square of side 'a'. The gravitational force on unit mass kept at the fourth corner is
Question 43 :
The period of moon's rotation around the earth is nearly <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5e914c637df1e953b6cb1105">. If moon's mass were 2 fold, its present value and all other things remained unchanged, the period of moon's rotation would be nearly
Question 45 :
If the radius of the earth were to shrink by 1%, its mass remaining the same, the acceleration due to gravity on the earth's surface would: