Class 9 Physics MCQs - Chapter 1

Dynamics Multiple Choice Questions (MCQ) PDF - 10

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The MCQs: Direction of centripetal force is always; "Dynamics" App Download Android & iOS (Free) with answers away from center, towards center, tangent to the circle and normal to the circle for high school certification courses. Practice uniform circular motion quiz questions, download Apple Book (Free Sample) for online schools.

Dynamics Questions & Answers PDF Download: MCQ Quiz 10

MCQ 46: The direction of centripetal force is always

towards center
away from center
tangent to the circle
normal to the circle

MCQ 47: The momentum of an isolated system of two or more than two interacting bodies remains

variable
zero
negative
constant

MCQ 48: The centripetal force is given by

(mV²) ⁄ r
r ⁄ mv
mvr
Vr

MCQ 49: The friction is reduced by

making sliding surfaces smooth
lubricating the surface
using ball bearings
all of above

MCQ 50: The maximum value of friction is known as the

initial friction
force of limiting friction
fixed friction
inertia

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