set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

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

Question : 2

If 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) Four times as large as it is now

b) Twice as large as it is now

c) One-fourth of what it is now

d) Half of what it is now

Question : 3

Why do pendulum checks usually lose time in summer?

a) Due to friction caused by coils

b) Due to longer days in summer

c) The length of the pendulum increases, increasing the time period of unit oscillation

d) The weight of the pendulum change in summer

Question : 4

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 : 5

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 : 6

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