Force and Pressure UPSC Questions

Physics

Force and Pressure MCQ Questions


13.
Friction acts in a opposite direction and it can affect an object to
A.
Slows down
B.
Stops
C.
Speed up
D.
Slows down and stops
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ANSWER :
D. Slows down and stops
14.
A force increases the speed of a 1.0kg object from 4m/s to 8m/s. The work done by the force will be
A.
8J
B.
16J
C.
24J
D.
32J
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ANSWER :
C. 24J
15.
Pressure =
A.
Area / force on which it acts
B.
force / area on which it acts
C.
Volume / force on which it acts
D.
Force / volume on which it acts
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ANSWER :
B. force / area on which it acts
16.
The SI unit of pressure is
A.
Pascal
B.
Newton
C.
Ampere
D.
Candela
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ANSWER :
A. Pascal
17.
In a tug-o-war, when two teams are pulling a rope, and the rope does not move towards any team, it implies that
A.
Equal force is being applied in the same direction
B.
Equal force is being applied in the opposite direction
C.
No force is applied in any direction
D.
None of the above
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ANSWER :
B. Equal force is being applied in the opposite direction
18.
The pressure exerted by air around us is known as
A.
Atmospheric pressure
B.
Atmospheric force
C.
Law of gravity
D.
None of the above
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ANSWER :
A. Atmospheric pressure