GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 008
71). Recoil of a gun is an example of :
A). conservation of mass
B). conservation of energy
C). conversion of P.E. into K.E.
D). conservation of linear momentum
Answer: conservation of linear momentum
72). The universal law of gravitation was propounded by
A). Kelper
B). Galileo
C). Newton
D). Copernicus
Answer: Newton
73). The gravitational force with which the sun attracts the earth
A). is less than the force with which the earth attracts the sun
B). is the same as the force with which earth attracts the sun
C). is more than the force with which the earth attracts the sun
D). is constant throughout the year
Answer: is the same as the force with which earth attracts the sun
74). lf 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
A). twice as large as it is now
B). four times as large as it is now
C). half of what it is now
D). one-fourth of what it is now
Answer: one-fourth of what it is now
75). The mass of a body is different from its weight because
A). mass is a variable quantity whereas weight is constant
B). mass varies very little at different places whereas weight varies a lot
C). mass is constant but weight increases as the body moves from the poles to the equator
D). mass is a measure of the quantity of matter whereas weight is a force
Answer: mass is a measure of the quantity of matter whereas weight is a force
76). The weight of a body is .
A). the same everywhere on the surface of the earth
B). maximum at the poles
C). maximum at the equator
D). more on the hills than in the plains
Answer: maximum at the poles
77). A body weighs slightly more at the poles than at the equator because
A). the earth is flat at the poles
B). the earth has the maximum speed of rotation al the equator
C). the attractive force at the poles increases due to the ice cap
D). none of these
Answer: none of these
78). Let WP and WE be the weights of a body at the north pole and at the equator respectively. If the earth were not rotating then
A). WP would be more
B). WP would remain unchanged
C). WE would remain unchanged
D). WE would be less
Answer: WP would remain unchanged
79). Person weighs more in a lift, which is
A). moving up with a constant velocity
B). moving down with a constant velocity
C). accelerating upward
D). accelerating downward
Answer: accelerating upward
80). lf a body is taken from the earth to the moon
A). its mass will be different but weight will remain the same
B). both mass and weight will be different
C). its mass will remain the same but weight will be different
D). its mass and weight will remain unchanged
Answer: its mass will remain the same but weight will be different
A). conservation of mass
B). conservation of energy
C). conversion of P.E. into K.E.
D). conservation of linear momentum
Answer: conservation of linear momentum
72). The universal law of gravitation was propounded by
A). Kelper
B). Galileo
C). Newton
D). Copernicus
Answer: Newton
73). The gravitational force with which the sun attracts the earth
A). is less than the force with which the earth attracts the sun
B). is the same as the force with which earth attracts the sun
C). is more than the force with which the earth attracts the sun
D). is constant throughout the year
Answer: is the same as the force with which earth attracts the sun
74). lf 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
A). twice as large as it is now
B). four times as large as it is now
C). half of what it is now
D). one-fourth of what it is now
Answer: one-fourth of what it is now
75). The mass of a body is different from its weight because
A). mass is a variable quantity whereas weight is constant
B). mass varies very little at different places whereas weight varies a lot
C). mass is constant but weight increases as the body moves from the poles to the equator
D). mass is a measure of the quantity of matter whereas weight is a force
Answer: mass is a measure of the quantity of matter whereas weight is a force
76). The weight of a body is .
A). the same everywhere on the surface of the earth
B). maximum at the poles
C). maximum at the equator
D). more on the hills than in the plains
Answer: maximum at the poles
77). A body weighs slightly more at the poles than at the equator because
A). the earth is flat at the poles
B). the earth has the maximum speed of rotation al the equator
C). the attractive force at the poles increases due to the ice cap
D). none of these
Answer: none of these
78). Let WP and WE be the weights of a body at the north pole and at the equator respectively. If the earth were not rotating then
A). WP would be more
B). WP would remain unchanged
C). WE would remain unchanged
D). WE would be less
Answer: WP would remain unchanged
79). Person weighs more in a lift, which is
A). moving up with a constant velocity
B). moving down with a constant velocity
C). accelerating upward
D). accelerating downward
Answer: accelerating upward
80). lf a body is taken from the earth to the moon
A). its mass will be different but weight will remain the same
B). both mass and weight will be different
C). its mass will remain the same but weight will be different
D). its mass and weight will remain unchanged
Answer: its mass will remain the same but weight will be different
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