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If the earth stops rotating, the weight of a body shall

become zero

remain unaffected

increase

decrease

The kinetic energy needed to project a body of mass m from the earth surface (radius R) to infinity is _____.

mgR/2

2 mgR

mgR

mgR/4

/

gp = 1/2ge

gp = ge

gp = 2ge

gp = 4 ge

Given: mass of the earth is 80 times the mass of moon, and the radius of the moon is 1/4th the radius of the earth. The value of acceleration due to gravity on the surface of moon will be ___ where ge denotes the acceleration due to gravity on the surface of earth.

0.16 ge

0.20 ge

0.24 ge

0.32 ge

Imagine that the diameter of the earth becomes twice its present value but its mass remains unchanged. Then the weight of an object on its surface will become _____________ the present value

one-half

one-fourth

three-fourth

remain unchanged

Weightlessness experienced while orbiting the earth in spaceships is the result of

inertia

acceleration

zero gravity

pull by other planets

AN artificial satellite stays in orbit around the earth. This may be attributed to

upward pull of the satellite

negligible earth’s gravitational field

centripetal force provided by earth’s gravitational acceleration

equilibrium between forces of attraction due to earth and other planets

A body weighing 1.6 kN at sea level is taken to a place which is 2000 km above sea level. The weight of body at that location will be

0.075 kN

0.9 kN

1.125 kN

1.2 kN

If the earth stops rotating, the weight of a body shall

become zero

remain unaffected

increase

decrease

If the earth stops rotating, the weight of a body shall

become zero

remain unaffected

increase

decrease

become zero

remain unaffected

increase

decrease

The kinetic energy needed to project a body of mass m from the earth surface (radius R) to infinity is _____.

mgR/2

2 mgR

mgR

mgR/4

/

gp = 1/2ge

gp = ge

gp = 2ge

gp = 4 ge

Given: mass of the earth is 80 times the mass of moon, and the radius of the moon is 1/4th the radius of the earth. The value of acceleration due to gravity on the surface of moon will be ___ where ge denotes the acceleration due to gravity on the surface of earth.

0.16 ge

0.20 ge

0.24 ge

0.32 ge

Imagine that the diameter of the earth becomes twice its present value but its mass remains unchanged. Then the weight of an object on its surface will become _____________ the present value

one-half

one-fourth

three-fourth

remain unchanged

Weightlessness experienced while orbiting the earth in spaceships is the result of

inertia

acceleration

zero gravity

pull by other planets

AN artificial satellite stays in orbit around the earth. This may be attributed to

upward pull of the satellite

negligible earth’s gravitational field

centripetal force provided by earth’s gravitational acceleration

equilibrium between forces of attraction due to earth and other planets

A body weighing 1.6 kN at sea level is taken to a place which is 2000 km above sea level. The weight of body at that location will be

0.075 kN

0.9 kN

1.125 kN

1.2 kN

If the earth stops rotating, the weight of a body shall

become zero

remain unaffected

increase

decrease

If the earth stops rotating, the weight of a body shall

become zero

remain unaffected

increase

decrease

This test will help you to prepare for AIEEE and IIT JEE exams.

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