वसुंधरा माध्यमिक विद्यालय,आष्टी.
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1. Gravitation
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1) The phenomenon of gravitation was discovered by………….
A. Kepler’s B. Dobereiner
C. Sir Isaac Newton D. Michael Faraday
2) Apples falls on the ground in vertical direction due to……….
A. Buoyant force B. Muscular force
C. Contact force D. Gravitational force
3) Where was Newton born?
A. America B. England
C. India D. China
4) Who construct the first reflecting telescope?
A. Kepler B. Dobereiner
C. Sir Isaac Newton D. Michael Faraday
6) A force acts on any object moving along a circle and it is directed towards the centre of the
circle. This force is called as……….
A. Buoyant force B. Centripetal force
C. Contact force D. Gravitational force
7) ………..is a natural satellite of the earth.
A. Moon B. Telescope
C. Artificial satellite D. Sputnik
8) Who stated three laws describing planetary motions?
A. Kepler B. Dobereiner
C. Sir Isaac Newton D. Michael Faraday
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, 9) The orbit of a planet is an ellipse with the sun at one of the foci. It is the ……..law of
planetary motions?
A. First B. Second
C. Third D. Fourth
10) The line joining the planet and the sun sweeps equal area in equal intervals of time. It is the
……..law of planetary motions.
A. First B. Second
C. Third D. Fourth
11) In Keplers third law ……….ᾳ r3 .
A. T B. T2
C. T3 D. 1 / T
12) An ellipse has ………..focal point.
A. One B. Two
C. Three. D. Four.
13) Who was a German astronomer and mathematician?
A. Kepler B. Henry Cavendish
C. Sir Isaac Newton D. Michael Faraday
m1 m2
14) In Newtons universal law of gravitation …………ᾳ .
d2
A. G B. K
C. F D. T
15) In Newtons universal law of gravitation , If the mass of one object is doubled , The
…….between the two objects also doubles.
A. Force B. Distance
C. Time D. Mass
16) In Newtons universal law of gravitation , If the …….. is doubled , The force decreases by a
factor of 4.
A. Force B. Distance
C. Time D. Mass
17) In Newtons universal law of gravitation, ……is the constant of proportionality.
A. G B. K
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********************************************
*********
1. Gravitation
------------------------------------------------------------------------------
-----------
1) The phenomenon of gravitation was discovered by………….
A. Kepler’s B. Dobereiner
C. Sir Isaac Newton D. Michael Faraday
2) Apples falls on the ground in vertical direction due to……….
A. Buoyant force B. Muscular force
C. Contact force D. Gravitational force
3) Where was Newton born?
A. America B. England
C. India D. China
4) Who construct the first reflecting telescope?
A. Kepler B. Dobereiner
C. Sir Isaac Newton D. Michael Faraday
6) A force acts on any object moving along a circle and it is directed towards the centre of the
circle. This force is called as……….
A. Buoyant force B. Centripetal force
C. Contact force D. Gravitational force
7) ………..is a natural satellite of the earth.
A. Moon B. Telescope
C. Artificial satellite D. Sputnik
8) Who stated three laws describing planetary motions?
A. Kepler B. Dobereiner
C. Sir Isaac Newton D. Michael Faraday
1|Page
, 9) The orbit of a planet is an ellipse with the sun at one of the foci. It is the ……..law of
planetary motions?
A. First B. Second
C. Third D. Fourth
10) The line joining the planet and the sun sweeps equal area in equal intervals of time. It is the
……..law of planetary motions.
A. First B. Second
C. Third D. Fourth
11) In Keplers third law ……….ᾳ r3 .
A. T B. T2
C. T3 D. 1 / T
12) An ellipse has ………..focal point.
A. One B. Two
C. Three. D. Four.
13) Who was a German astronomer and mathematician?
A. Kepler B. Henry Cavendish
C. Sir Isaac Newton D. Michael Faraday
m1 m2
14) In Newtons universal law of gravitation …………ᾳ .
d2
A. G B. K
C. F D. T
15) In Newtons universal law of gravitation , If the mass of one object is doubled , The
…….between the two objects also doubles.
A. Force B. Distance
C. Time D. Mass
16) In Newtons universal law of gravitation , If the …….. is doubled , The force decreases by a
factor of 4.
A. Force B. Distance
C. Time D. Mass
17) In Newtons universal law of gravitation, ……is the constant of proportionality.
A. G B. K
2|Page
