Welcome to your Gravitational - 3
1.
Areal velocity is maximum when planet is
2.
A satellite of very small mass revolves around Earth. Force on satellite is
3.
Central force always acts
4.
A force always directed towards a fixed point is called
5.
Geostationary satellite has time period equal to
6.
A body projected vertically upward with escape velocity will
7.
Escape velocity is independent of
8.
Orbital velocity of satellite near Earth surface is
9.
Central force does not cause change in
10.
At height equal to Earth’s radius, g becomes
11.
If Earth’s radius is doubled keeping mass same, escape velocity becomes
12.
Escape velocity of a planet is directly proportional to
13.
Orbital velocity depends on
14.
Geostationary satellite revolves in
15.
Which of the following is a central force?
16.
Relation between escape velocity and orbital velocity is
17.
If torque on a system is zero, which quantity remains constant?
18.
Torque acting on a particle under central force is
19.
Expression for g at height h (h ≪ R) is
20.
g at infinite height is
21.
Weightlessness in satellite occurs because
22.
For inverse square force, orbit of planet can be
23.
Energy of satellite in circular orbit is
24.
Escape velocity does not depend on
25.
Central force depends on
26.
Escape velocity from Moon is less because Moon has
27.
If force acting on a planet is central, its areal velocity is
28.
Gravitational force between Sun and planet acts along
29.
If orbital radius increases, total energy of satellite becomes
30.
If a body is projected with speed greater than escape velocity, it will
31.
Time period of satellite increases when
32.
Areal velocity of a particle under central force is
33.
Escape velocity from Earth surface is approximately
34.
Angular momentum of a particle under central force is
35.
If angular momentum increases, areal velocity
36.
Rate of change of angular momentum equals
37.
Formula for escape velocity is
38.
The area swept by radius vector in time Δt is proportional to
39.
Escape velocity of a planet is directly proportional to
40.
Motion of a particle under central force is confined to
41.
g decreases with height because
42.
For a planet in orbit, area swept in short time Δt equals
43.
Kepler’s second law applies because gravitational force is
44.
Kepler’s second law is equivalent to conservation of
45.
Escape velocity from Earth depends on
