Welcome to your Gravitational - 2
1.
Kepler’s third law is valid for
2.
Who provided data for Kepler’s laws?
3.
Which law explains variation of speed of planet?
4.
Kepler’s laws were derived from
5.
Kepler’s third law relates
6.
If a planet suddenly stops obeying Kepler’s second law, which quantity is not conserved?
7.
Newton’s law of gravitation states that force between two masses is proportional to
8.
According to Kepler’s second law, area swept in equal time intervals is
9.
A comet moving in highly elliptical orbit has very high speed at
10.
A satellite moving under gravity sweeps equal areas in equal times about
11.
Dimensions of gravitational constant G are
12.
Gravitational force between two masses varies inversely as
13.
Which of the following is NOT explained by Kepler’s laws?
14.
Kepler’s third law states that T² is proportional to
15.
In an elliptical orbit, sum of distances from foci is
16.
The farthest point of planet from Sun is
17.
Areal velocity of planet in elliptical orbit is
18.
If semi-major axis of planet A is 4 times that of planet B, ratio of their periods is
19.
A planet farther from Sun has
20.
The closest point of planet from Sun is called
21.
In an elliptical orbit, the Sun is located at
22.
Elliptical orbit becomes circular when
23.
A planet moves slowest when it is
24.
Kepler’s second law is equivalent to conservation of
25.
A planet moves fastest when it is
26.
Newton used Kepler’s laws to establish
27.
SI unit of gravitational constant G is
28.
Which quantity remains constant for a planet in circular orbit?
29.
If mass of Sun increases, time period of Earth will
30.
Kepler’s second law is a consequence of conservation of
31.
If gravitational force suddenly disappears, planet will move in
32.
For elliptical orbit, total energy of planet is
33.
If radius of circular orbit of a planet is doubled, its time period becomes
34.
Two planets revolve around Sun in circular orbits of radii r and 4r. Ratio of angular speeds is
35.
Kepler’s second law is also known as
36.
The direction of velocity at any point of orbit is along
38.
Semi-major axis of ellipse is
39.
Gravitational force between two bodies is always
40.
Kepler’s first law states that planets move in
41.
Kepler’s laws are valid for
42.
For planets revolving around Sun, central force is
43.
For a planet in elliptical orbit, maximum speed occurs at
44.
Which scientist explained Kepler’s laws theoretically?
45.
Circular orbit is a special case of
