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WorksheetsChapter 7 Gravitation
Total questions: 15
Worksheet time: 15mins
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 gravitational force between two bodies of masses m1 and m2 are separated by distance r is F. State the effect on the gravitational force when m1 increases twice.
2F
1/2 F
4F
4F
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 gravitational force between two bodies of masses m1 and m2 are separated by distance r is F. State the effect on the gravitational force when distance between two bodies increases twice.
2F
1/2 F
1/4 F
4F
An apple is placed in the Earth's gravitational field. Which of the following best explains why the apple falls to the ground?
The field exerts a gravitational force upon the apple.
The Earth exerts a gravitational force upon the apple.
Masses attract each other.
On Earth, all objects fall with acceleration 9.8 m/s².
What happen to the gravitational acceleration to an object if the object is moving from surface of the planets to the outer space?
increases
decreases
unchanged
increase, then decrease
Which of the following is true about geostationary satellite?
Above different geographical location.
The orbital period is longer than 24 hours.
It does not experience any gravitational pull
Its period of rotation is one day.
The gravitational force between two masses is
always attractive
zero when a third mass placed between them
inversely proportional to their distance
directly proportional to the sum of the two masses
Which equation represents Newton's law of universal gravitation?
Fg=rGm1m2
Fg=r2Gm1m2
Fg=Gr2m1m2
Fg=m2Gm1r2
Gravitational field strength is define as
gravitational force per unit time acting on a body at a point in a gravitational field
the force between two bodies of mass M and m is directly proportional to the product of their masses
gravitational force per unit mass acting on a body at a point in a gravitational field
the force between two bodies inversely proportional to the square of the distance between them
An apple is hangs on a tree on the earth, which of the following statements is correct about the interaction between the apple and the earth?
The force on the apple is greater that the force on the Earth
The force on the apple is equal to the force on the earth
The force on the Earth is larger than the force on the apple
The forces on the apple and the earth are zero because they are not touching each other
As a distance increases, value of gravitational field strength
increases
decreases
remains constant
may increase then decrease
The minimum velocity required to leave the atmosphere is called the...
orbital velocity
ejection velocity
escape velocity
terminal velocity
