General Science - Mock Test 4

Question 31

If a body weight 12N on the surface of the earth, how much will it weigh on the surface of the moon where acceleration due to gravity is only one-sixth of that on earth's surface

A) 12N B) 2N C) 10N D) 6N

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Question 32

The period of oscillation of a simple pendulum depends upon

A) the mass of its bob B) the material of the bob C) the amplitude of vibration D) acceleration due to the gravity at the site of experiment

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Question 33

What is the minimum velocity required for a rocket to overcome earth's gravity and travel into space

A) 9.8 km/sec B) 11.2 km/ sec C) 25 km/ sec D) 35 km/ sec

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Question 34

A boy is swinging a ball attached to a string in a horizontal circle. If the string snaps

A) the ball will travel towards the center of the circle and fall down B) it will continue to travel along a tangent to the circle at the point the ball was at the time of snapping and finally fall down C) it will fall down at the same place where the string breaks D) None of these

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Question 35

An astronomical unit of distance is _______

A) a kilometre B) light year C) the average distance from the earth to the sun D) None of the above

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Question 36

A light year means ________

A) a unit of length B) a unit of time C) a year of no consequence D) illumination throughout the year

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Question 37

A stationary elevated object has

A) kinetic energy B) potential energy C) momentum D) both potential and kinetic energy

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Question 38

Railway tracks are banked on curves so that

A) the necessary centrifugal force may be obtained from the horizontal component of the weight of the train B) the frictional force between the track and the wheels is avoided C) the necessary centripetal force may be derived from the horizontal component of the weight of the train D) None of these

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Question 39

Who discovered that the Cree Call acceleration is the same for any object at a given place

A) Newton B) Pascal C) Archimedes D) Galileo

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Question 40

In a vacuum the following three articles are dropped at the same time and from the lame height. Which will reach the ground quicker

A) a stone B) a piece of wood C) a feather D) all will reach the ground at the same time

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