Welcome to your Gravitational - 5
1.
Gravitational potential at infinite distance is taken as
2.
Force exerted by Earth on Sun is
3.
Acceleration due to gravity at height h above Earth (h ≪ R) is
4.
Unit of gravitational constant G is
5.
If distance between two masses is halved, force becomes
6.
Acceleration due to gravity on Earth’s surface is
7.
At what depth inside Earth is g half its surface value?
8.
At what height above Earth does g become half?
9.
Variation of g with depth is linear because
10.
In Cavendish experiment, restoring torque is proportional to
11.
Value of g at poles compared to equator is
12.
Force acting on a satellite in circular orbit is
13.
Value of G is same on
14.
Cavendish experiment helped prove
15.
If gravitational constant G were doubled, gravitational force would
16.
Acceleration due to gravity at depth d inside Earth is
17.
Why Cavendish experiment is difficult
18.
Direction of gravitational force on Earth due to Sun is
19.
Superposition principle may fail in
20.
Net gravitational force at centroid of equilateral triangle with equal masses
21.
Acceleration due to gravity at height h (h
22.
In Cavendish experiment, deflection angle θ increases if
24.
If Earth rotates faster, g at equator
25.
Gravitational force is weakest among fundamental forces because
26.
SI unit of gravitational field intensity is
27.
If Earth shrinks keeping mass same, g at surface
28.
At centre of Earth, acceleration due to gravity is
29.
Gravitational field at the centre of Earth is
30.
If distance between masses is doubled in Cavendish experiment, force becomes
31.
In Cavendish experiment, gravitational force is measured using
32.
Orbital speed of a satellite decreases when
33.
At centre of Earth, gravitational potential is
34.
Gravitational force inside hollow Earth is
35.
Outside Earth, g varies with distance as
36.
Gravitational field lines are
37.
Mass of Earth is assumed concentrated at centre when calculating g for
38.
Purpose of torsion wire in Cavendish experiment
39.
If radius of Earth decreases keeping mass constant, g
40.
Gravitational force inside a solid sphere at r = 0 is
41.
Newton’s law of gravitation is exactly applicable for
42.
Gravitational force between two equal masses m at distance r is
43.
Gravitational constant G is determined by measuring
44.
Value of g inside Earth varies with
45.
If Earth’s mass doubles, g becomes
