Gravitation Test

Result

Gravitation Test - 18

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
4 / -1

If suddenly the gravitational force of attraction between the earth and a satellite revolving around it becomes zero, then the satellite will

A
continue to move in its orbit with same velocity

B
move tangentially to the original orbit with the same velocity

C
become stationary in its orbit

D
move towards the earth
Question 2
4 / -1

Gravitational attraction on Earth on the stone of mass M is F_S. If the force on hydrogen balloon of mass M located at the same space is F_B, then

A
F_S > F_B

B
F_S < F_B

C

D
Question 3
4 / -1

If one moves from the surface of earth to moon, what will be the effect on its weight?

A
Weight of a person decreases continuously with height from the surface of earth

B
Weight of a person increases with height from the surface of earth

C
Weight of a person first decreases with height and then increases with height from the surface of earth

D
Weight of a person first increases with height and then decreases with height from the surface of earth.
Question 4
4 / -1

For a body to escape from earth, angle at which it should be fired is

A
45^o

B
> 45^o

C
< 45^o and

D
any angle
Question 5
4 / -1

To an astronaut in a space ship, the sky appears pitch dark because of

A
the absence of atmosphere in his neighbourhood.

B
light from the sky is absorbed by the medium surrounding him.

C
the fact that at height radiations are only in the infrared and the ultraviolet range.

D
the fact that the human eye becomes blind for the blue colour.
Question 6
4 / -1

The earth moves around the sun in an elliptical orbit as shown in the fig. The ratio. OA/OB = x. The ratio of the speed of the earth at B and at A is

A

B
x

C
x²

D

Solution
Question 7
4 / -1

A jet engine works on the principle of

A
conservation of mass

B
conservation of energy

C
conservation of linear momentum

D
conservation of angular momentum
Question 8
4 / -1

The mass of the moon is about 1.2% of the mass of the earth. Compared to the gravitational force the earth exerts on the moon, the gravitational force the moon exerts on earth

A
is the same

B
is smaller

C
is greater

D
varies with its phase
Question 9
4 / -1

The time period of a satellite of earth is 5 hours. If the separation between the earth and the satellite is increased to 4 times the previous value, the new time period will become

A
40 hours

B
20 hours

C
10 hours

D
80 hours

Solution
Question 10
4 / -1

The curves for potential energy (E_P) and kinetic energy (E_K) of two particles system are shown in fig. At what points the system will be bound

A
only at point A

B
only at point D

C
at points A and D

D
at points A, B and C