Friction (Static, Kinetic, Rolling and Laws of Friction) NEET Questions

Physics - Laws of Motion

Friction (Static, Kinetic, Rolling and Laws of Friction) MCQ Questions


13.
Which factor does NOT affect friction?
A.
Mass of the object
B.
Nature of the surface
C.
Speed of the object
D.
Area of contact
😑 View Answer Rough Work Error
ANSWER :
D. Area of contact
14.
Friction is caused due to:
A.
Surface smoothness
B.
Electrostatic forces
C.
Surface irregularities
D.
Gravity
😑 View Answer Rough Work Error
ANSWER :
C. Surface irregularities
15.
The force required to start the motion of an object is:
A.
Static friction
B.
Kinetic friction
C.
Rolling friction
D.
Normal force
😑 View Answer Rough Work Error
ANSWER :
A. Static friction
16.
What happens when oil is applied between two surfaces?
A.
Friction increases
B.
Friction decreases
C.
Friction remains constant
D.
Friction becomes infinite
😑 View Answer Rough Work Error
ANSWER :
B. Friction decreases
17.
Friction depends on:
A.
Speed
B.
Contact force
C.
Both A and B
D.
Neither A nor B
😑 View Answer Rough Work Error
ANSWER :
B. Contact force
18.
If a heavy object is placed on a rough surface, which friction increases?
A.
Static friction
B.
Kinetic friction
C.
Rolling friction
D.
Fluid friction
😑 View Answer Rough Work Error
ANSWER :
A. Static friction