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WorksheetsGravitation
Total questions: 40
Worksheet time: 30mins
The value of Universal Gravitational constant is
6.673X10-11 Nm-2kg2
6.673X10-11 Nm2kg2
6.673X10-11 Nm2 kg-2
6.673 x10-11 N m-2 kg-2
Newton said that any two masses will...
combine into a larger mass.
attract each other.
create gravitational fields.
push each other apart.
According to Newton's law of gravitation, the Earth and the Moon are gravitationally attracted to each other. The more massive Earth attracts the Moon with...
a stronger force than the Moon attracts the Earth.
a weaker force than the Moon attracts the Earth.
the same force as the Moon attracts the Earth.
a force that is sometimes stronger and other times weaker than the Moon attracts the Earth.
The distance between the two masses in the previous situation is halved. Determine the gravitational force in this new situation.
20 N
40 N
80 N
160 N
The gravitational force between two bodies of masses m1 and m2 separated by distance r is F. State the effect on the gravitational force when m1 increases twice.
2F
1/2 F
4F
4F
A massive object and a less massive object exert a gravitational force on each other. Which of the following picture correctly shows the magnitude and direction of the forces involved in this interaction?
The gravitational force in the previous interaction was 20 N. Determine the gravitational force in the new situation where the second mass is doubled.
10 N
20 N
40 N
80 N
The picture shows two identical satellites, A and B, in circular orbits around the Earth. Upon which satellite does the Earth exert a stronger gravitational force?
Satellite A
Satellite B
Equal on both
Cannot be determined
The Earth exerts a gravitational force of 12 N upon satellite B. Satellite A is twice as far away from the Earth as satellite B. Determine the gravitational force the Earth exerts on satellite A.
3 N
6 N
12 N
24 N
Force of gravity is inversely proportional to
Mass
Distance 2
Distance
Time
The picture shows three objects gravitationally interacting with each other. Which object exerts the greatest force on object B?
Object A
Object C
A and C exert an equal force on B
Cannot be determined
Kepler's Second Law states
objects attract other objects with a force that is directly proportional to the product of their masses
the square of the ratio of the periods of any two planets revolving around the Sun is equal to the cube of the ratio of their average distance from the Sun
An imaginary line joining a planet and the sun sweeps out an equal area of space in equal amounts of time.
Planets move about the Sun in an elliptical orbit with the Sun at one of the foci.
which are the following is Newton’s Law of gravitation ?
W=rGMm
F =r2GMm
V =rGM
g=− rGM
the gravitation force of a particle X of mass m1 on another particle Y mass m2 is F1 . the gravitational force of Y on X is F2 . if m1>m2 , which of the following statements about the gravitational force F1 and F2 is correct ?
magnitude of F1 is greater than the magnitude of F2
F1 and F2 in same directions
F1 and F2 act along the line joining m1 and m2
F1 and F2 form an potential energy pair
The mass of moon is about 0.012 times that of the earth and its diameter is about 0.25 times that of earth. The value of G on the moon will be:
Same as that on the earth
About one-fifth of that on the earth
About one-sixth of that on the earth
About one-fourth of that on the earth
An apple falls from a tree because of the gravitational attraction between the earth and the apple. If F1 is the magnitude of the force exerted by the earth on the apple and F2 is the magnitude of the force exerted by the apple on the earth, then
F1 is very much greater than F2
F2 is very much greater than F1
F1 and F2 are equal
F1 is only a little greater than F2
. A boy is whirling a stone tied with a string in a horizontal circular path as shown in the following figure:
Will move along a straight line towards the centre of the circular path
Will move along a straight line the tangential to the circular path
Will move along a straight line perpendicular to the circular path away from the boy
Will continue to move in the circular path
The gravitational force between two bodies is decreased by 36% when the distance between them is increased by 3m. The initial distance between them is
6m
9m
12m
15m
The gravitational force between two objects is F. If masses of both objects are doubled and distance between them becomes doubled, then the gravitational force would become
4F
6F
2F
F
The masses of two planets are in the ratio 1 : 2. Their radii are in the ratio 1 : 2. The acceleration due to gravity on the planets are in the ratio
1 : 2
2:1
1:4
4:1
On the earth, a stone is thrown from a height in a direction parallel to the earth’s surface while another stone is simultaneously dropped from the same height. Which stone would reach the ground first and why?
free fall will reach first
body with horizontal motion reach first
both will reach at same time
never reach ground
Two particles are placed at some distance. If the mass of each of the two particles is tripped, keeping the distance between them unchanged, the value of gravitational force between them will be
1/9 times
9 times
6 times
1/6 times
Two objects of different masses falling freely near the surface of moon would
have same velocities at any instant
have different accelerations
experience forces of same magnitude
undergo a change in their inertia
The earth attracts the moon with a gravitational force of 10²² N.The moon attracts the earth with a gravitational force of
less than 10²² N
10²² N
Greater than 10²² N
10-²² N
Which is needed to determine the amount of gravitational force between two objects?
distance and mass
weight and time
area and weight
The gravitational force exerted by an object depends on its
volume
mass
weight
Gravity on moon is less than the gravity on earth because
a. moon's mass is less
b. moon's mass is more
c. moon's mass is equal to Earth
d. moon has no mass
The diagram shows planer Jupiter and Venus are orbiting the Sun with R1 and R2 respectively. What is the ratio of orbital period planet Jupiter and Venus if the ratio of radius orbit planet Jupiter and Venus is 9: 4?
64: 729
16: 81
27: 8
8: 27
