motion under gravity - Category wise Question and Answer Practice Test with Solutions

Question : 1 [PSC (Pre) 2019]

What will happen if an object is thrown into space with the speed of 8 km/s?

a) It will return to Earth

b) The object will go into space

c) It will rotate into the orbit of Earth

d) It will burst out

Question : 2 [IAS (Pre) 1997]

A girl is swinging on a swing in sitting position. When the girl stands up, the period of the swing will

a) Be longer

b) Be shorter

c) Depends on the height of the girl

d) Not change

Question : 3 [MPPCS (Pre) 2017]

A batsman hits a cricket ball which then rolls on a level ground. After covering a short distance, the ball comes to rest. The ball slows to a stop because

a) Velocity is proportional to the force exerted on the ball

b) The batsman did not hit the ball hard enough

c) There is a force on the ball opposing the motion

d) There is no unbalanced force on the ball, so the ball would try to come to rest

Question : 4 [UPPCS (Pre) 2006]

Satellite is kept moving in its orbit around the Earth; it is due to

a) Centripetal force

b) Centrifugal force

c) Gravitational force or lack of it

d) Some other forces

Question : 5 [IAS (Pre) 2013]

If a person sitting in a lift, then when will he feel that his weight gets increased?

a) When the elevator going down expeditiously

b) When the elevator going upward expeditiously

c) Going upward with constant velocity

d) Going downward with constant velocity