set 1 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 2 EXERCISES
The following question based on motion under gravity topic of general science mcq
(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
The correct answers to the above question in:
Answer: (b)
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Read more physics gk quiz Based General Science Questions and Answers
Question : 1
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
Answer »Answer: (c)
Question : 2
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
Answer »Answer: (c)
Question : 3
Two balls A and B are of 10 kg and 1 kg, respectively. They are dropped simultaneously from a height of 20 m. Which of the following is correct?
a) B will reach the ground first
b) A will reach the ground first
c) Both A and B will reach the ground at the same time
d) None of the above
Answer »Answer: (c)
Question : 4
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
Answer »Answer: (a)
Question : 5
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
Answer »Answer: (c)
Question : 6
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
Answer »Answer: (b)
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