General Science - Mock Test 5

Question 41

if an empty cylinder Is half ruled with a liquid, Its centre of gravity is

A) shifted upwards B) shifted downwards C) shifted neither upward nor downward D) shifted upward or downward depending on the density of the liquid

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Question 42

If the speed of the rotation of the earth increases the weight of a body

A) will increase B) will decrease C) will have no change D) will either increase or decrease

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Question 43

Where does the centre of gravity of a rubber ring lie

A) on the outer surface B) in the inner surface C) at the centre of the ring D) None of the above

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Question 44

A cyclist leans inwards when he is negotiating a curve 10 that

A) he may increase his speed B) his weight may be reduced C) necessary centripetal force may be available from the horizontal component of the normal reaction due to the track to maintain the curved motion D) no frictional force may be produced between the wheels and the axle

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Question 45

The distance between two bodies is halve4⃣ Now the force of attraction between them will be

A) half B) one fourth C) four times D) Now the force of attraction between them will be? 1⃣ half 2⃣ one fourth 3⃣ four times

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Question 46

The unit of power in SI is

A) Joule B) Newton C) Joule/Sec D) Erg/Sec

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Question 47

A hunter on the ground wishes to shoot a bird on a tree at a distance with his rifle. He has to point the rifle

A) at the lower elevation than the bird B) at a higher elevation than the bird C) in the same direction as the bird D) vertically upwards

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Question 48

The sun continuously produces an enormous amount of energy. This is due to

A) nuclear fission B) nuclear fusion C) chemical combustion D) boiling

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Question 49

When a swing is drawn to a side Its potential energy In relation to the earth

A) increases B) decreases C) remains the same D) is constant

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Question 50

A body has fallen from a height. Just before touching the pound it has

A) lost all its potential energy and gained an equivalent amount of kinetic energy B) gained potential energy and lost kinetic energy C) gained kinetic energy as well as potential energy D) lost kinetic energy as well as potential energy

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