General Science

EnglishUPPCS (Mains) 2007

Q2181.Astronauts in space cannot stand erect. This is because, in space

AThere is no gravity BViscous forces of the atmosphere are very strong CSolar wind exert an upward force DAtmospheric pressure is very low

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EnglishIAS (Pre) 1995

Q2182.Who among the following anticipated Newton by declaring that all things gravitate to the Earth?

AAryabhatta BVarahamihira CBuddhagupta DBrahmagupta

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EnglishMPPCS (Pre) 2010

Q2183.Who gave the theory of gravity?

ACharles Newton BCharles Babbage CIsaac Newton DJohn Adams

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EnglishUPPCS (Pre) 2010

Q2184.If an apple is released from an orbiting spaceship, it will

AFall towards the Earth BMove at a lower speed CMove along with the spaceship at the same speed DMove at a higher speed

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EnglishUPPCS (Pre) 2009

Q2185.The Leaning Tower of Pisa does not fall because

AIt is tapered at the top BIt covers a large base area CIts centre of gravity remains at the lowest position DThe vertical line through the centre of gravity of the tower falls within its base

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EnglishUPPCS (Mains) 2009

Q2186.If the distance between the Earth and the Sun were twice what it is now, the gravitational force exerted on the Earth by the Sun would be

ATwice as large as it is now BFour times as large as it is now COne-fourth of what it is now DHalf of what it is now

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EnglishMPPCS (Pre) 1992

Q2187.If an object is falling from above, its weight remains

AZero BSame CChange DNone of these

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EnglishRAS/RTS (Pre) 1992

Q2188.If pieces of equal size of woods, wax and iron falling from a same height, which one will reach the surface of the Earth first?

AWood BWax CIron DReach at the same time

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EnglishUPPCS (Pre) 1992

Q2189.The two balls of iron and wood of same weight dropped from the same height, then

AThey reach the ground (Earth) at the same time BOne falls first, another falls later CThe wooden ball falls later DThey reach the ground after some gap

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EnglishGoa PSC (Pre) 2018 UP Lower Sub. (Pre) 2015

Q2190.Two balls A and B are of 10 kg and 1 kg, respectively. They are dropped simultaneously from a height of 20 m. Which of the following is correct?

AA will reach the ground first BB will reach the ground first CBoth A and B will reach the ground at the same time DNone of the above

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EnglishMaharashtra PSC (Pre) 2017 UPPCS (Mains) 2009, 2015 UPPCS (Pre) 2006

Q2191.The weight of human body is

AMaximum at the poles BSame at every place on the Earth’s surface CMaximum at the equator DMore on the mountains than planes

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EnglishIAS (Pre) 1998

Q2192.A ball is dropped from the top of a high building with a constant acceleration of 9.8 m/s2. What will be its velocity after 3 s?

A9.8 m/s B19.6 m/s C29.4 m/s D39.2 m/s

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EnglishIAS (Pre) 2003

Q2193.If the radius of the Earth were to shrink by one percent, its mass remaining the same, the value of g on the Earth’s surface would

AIncrease by 0.5% BIncrease by 2% CDecrease by 0.5% DDecrease by 2%

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EnglishIAS (Pre) 1994

Q2194.The acceleration due to gravity of a destructive Earthquake will be

A>550 cm/s2 B>750 cm/s2 C>950 cm/s2 D>980 cm/s2

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EnglishIAS (Pre) 2001

Q2195.The mass of a body on the Earth is 100 kg (acceleration due to gravity, ge = 10 m/s2). If acceleration due to gravity on the Moon is (ge = 106 m/s2), then the mass of the body on the Moon is

A100/6 kg B60 kg C100 kg D600 kg

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EnglishMPPCS (Pre) 1991

Q2196.Weightlessness is

AZero gravity BWhen gravity decrease CIn vacuum DNone of the above

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EnglishUPPCS (Mains) 2013

Q2197.The Earth travels in its orbit at a speed of approx. 4,400 km per hour. Why do we not feel this high speed?

ABecause we are too small compared to the size of the Earth BOur relative speed with respect to the Earth along the Earth’s orbit is zero CThe solar system as a whole is also moving DThe gravity of the Earth constantly pulls us towards the Earth’s centre

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EnglishUPPCS (Mains) 2012

Q2198.If the gravitational force of the Earth suddenly disappears, which are of the following will be the correct consequence?

AThe weight of an object will become zero but the mass will remain the same BThe mass of the object will become zero but the weight will remain the same CBoth the mass and the weight of the object will become zero DThe mass of the object will increase

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EnglishIAS (Pre) 2011

Q2199.An artificial satellite orbiting around the Earth does not fall down. This is so because the attraction of Earth

ADoes not exist at such distance BIs neutralized by the attraction of the Moon CProvides the necessary speed for its steady motion DProvides the necessary acceleration for its motion

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EnglishUPPCS (Pre) 2006

Q2200.A Geosynchronous satellite continuously active in its orbit due to centrifugal force which is obtained by

AThe rocket engine that propelled the satellite BThe gravitational force on the satellite by the Earth CThe gravitational force on the satellite by the Sun DThe gravitational force on the Earth by satellite

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