Gravitation Test

Result

Gravitation Test - 3

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Weekly Quiz Competition

Question 1
1 / -0

What is the nature of gravitational force between two bodies?

A
Always repulsive

B
Always attractive

C
Either attractive or repulsive

D
Nothing can be said
Question 2
1 / -0

The force of attraction between two masses, each of 1 kg, kept at a separation of 1 cm is

A
6.710^-11 N

B
6.710^-13 N

C
6.710^-7 N

D
6.7 10^-9N
Question 3
1 / -0

The value of G is

A
9.8 N kg^-1

B
6.710^-11 ms^-2

C
6.7 N kg^-1

D
6.710^-11 N m² kg^-2
Question 4
1 / -0

The force of attraction between two bodies at a certain separation is 6 N. What would be the force of attraction between them if the separation between them is reduced to half?

A
24 N

B
3 N

C
12 N

D
6 N
Question 5
1 / -0

The gravitational force between two objects is F. If masses of both the objects are halved and distance between them is doubled, what will be the gravitational force between them?

A
F

B

C

D
Question 6
1 / -0

In the relation, F =the quantity G

A
is greatest at the surface of earth

B
is used only when the earth is one of the two masses

C
is universal constant of nature

D
depends upon the value of g at the place of observation
Question 7
1 / -0

Law of gravitation gives the gravitational force between

A
the earth and sun only

B
the earth and a point mass only

C
two charged bodies only

D
any two bodies having some mass
Question 8
1 / -0

Gravitational force between two particles placed at some distance is `F`. What will be the value of gravitational force between them, if the mass of each particle is doubled and the distance between them is also doubled?

A
F

B
2F

C
4F

D
Question 9
1 / -0

What is the force of gravitation between two unit point masses separated by a unit distance equal to?

A
Acceleration due to gravity

B
Gravitational potential

C
Universal gravitational constant

D
Gravitational field
Question 10
1 / -0

Object A having mass m_A exerts a gravitational force of magnitude
2 10^-10 N on object B of mass m_B. What is the magnitude of the gravitational force if the separation distance is doubled, m_A increases by 4 times and m_B is halved?

A
2 10^-10 N

B
1 10^-10 N

C
4 10^-10 N

D
0.25 10^-10 N
Question 11
1 / -0

The weight of an object

A
is the amount of the matter it contains

B
is the same as its mass, but expressed in different units

C
refers to its inertia

D
is the force with which it is attracted towards the earth
Question 12
1 / -0

The value of acceleration due to gravity (g)

A
is greater at the Poles than at the Equator

B
is greater at the Equator than at the Poles

C
is same at the Equator and at the Poles

D
is universal in nature
Question 13
1 / -0

What is the approximate value of `g` on earth`s surface?

A
0.1 N kg^-1

B
10 N kg^-1

C
100 N kg^-1

D
1000 N kg^-1
Question 14
1 / -0

The weight of a body is 16 N. What is the mass of the body? (Take g = 10 ms^-2)

A
16 kg

B
10 kg

C
1.6 kg

D
160 kg
Question 15
1 / -0

A man weighs 600 N on the earth. What would be his approximate weight on the moon?

A
200 N

B
100 N

C
60 N

D
600 N
Question 16
1 / -0

What amount of force is applied on a mass of 12.6 kg being pulled by the earth?
(Take g = 10 ms^-2)

A
12.6 N

B
1.26 N

C
126 N

D
0.126 N
Question 17
1 / -0

If mass of an object is 10 kg, what is its weight on the earth?

A
10 N

B
98 N

C
9.8 N

D
1 N
Question 18
1 / -0

A spherical planet has a mass M_o and diameter D_o. If a particle of mass `m` is falling freely near the surface of the planet, what will be the acceleration due to gravity experienced by the particle?

A

B

C

D
Question 19
1 / -0

What will be the acceleration due to gravity at the surface of a planet whose mass and radius are half to that of the earth`s?

A
9.8 ms^-2

B
2.45 ms^-2

C
39.2 ms^-2

D
19.6 ms^-2
Question 20
1 / -0

An object weighs 900 N on earth. What will be its weight on a planet having of earth`s mass and half of earth`s radius?

A
100 N

B
400 N

C
200 N

D
900 N