F4 Phys 3.1
Authored by Tee Chung Hau
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10th Grade
Used 1+ times
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21 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
All the following will happen to an object placed at P except
Remain stationary
Pulled by object at X
Pulled by object at Y
Move to X
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A rocket travels from P to Q. What is the distance of the rocket from P when the resultant gravitational force on it is zero?
0.45x
0.50x
0.60x
0.65x
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The gravitational force acting on a satellite on the surface of the earth of radius R is F. What is the gravitational force on the satellite at altitude 2R from the surface of the earth?
F/2
F/4
F/3
F/9
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why does the Earth stay in orbit around the Sun?
The gravitational pull
of the Sun on the Earth
is equal in magnitude
but opposite to the
gravitational pull of the
Earth on the Sun.
The gravitational pull of
the Sun on the Earth acts
as the centripetal force.
The gravitational pull of
the Sun on the Earth is
negligible
The gravitational pull
on the Earth by the Sun is
balanced by the centripetal
force on the Earth.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is true about the gravitational force?
Gravitational force of
a planet on an object is
directly proportional to
mass of the planet only.
The effect of distance
between two objects is
less than the effect of
mass on gravity.
Gravitational force is
inversely proportional
to distance between two
objects.
Gravitational force is
inversely proportional to
the square of the distance
between two objects.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Gravitational acceleration at the earth’s surface is g. Suppose the Earth were compressed to half its diameter. The new acceleration due to the gravitiy at its surface is
2g
4g
g/2
g/4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is true about the gravitational acceleration outside the surface of the earth?
Uniform for all points
outside the earth’s surface.
Directly proportional to
the distance from the
centre of the earth.
Inversely proportional
to the distance from the
centre of the earth.
Inversely proportional to
the square of the distance
from the centre of the earth
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