# Circular Motion Class 12 Physics MCQs With Answers

FSC Physics MCQs Part 1 Physics Part 2 HSSC Pre Medical Pre Engineering text Book Questions first year and second-year Physics mcqs

The rotational K.E of hoop is equal to the
A. its translational K.E B. half than its translational K.E
C. double than its translational K.E D. four times than its translational K.E
A
A hoop and disc have same mass and radius. Their rotational K.E are related by an equation
A. K.Ehoop = K.Edisc B. K.Ehoop = 2K.Edisc
C. K.Ehoop = 1/2K.Edisc D. K.Ehoop = 4K.Edisc
B
According to Einstein the gravity interaction is possible between
A. material objects only B. material objects and electromagnetic radiation only
C. electromagnetic radiations D. none of the above
B
The direction of linear velocity of body moving in a circle is
A. along the axis of rotation B. along the tangent
C. directed towards the center D. directed away form the center
B
When a body is whirled in a horizontal circle by means of a string the centripetal force is supplied by
A. mass of a body B. velocity of body
C. tension in the string D. centripetal acceleration
C
A stone is whirled in a vertical circle at the end of a string. When the stone is at the highest position the tension in the string is
A. maximum B. zero
C. equal to the weight of the stone D. less than the weight of the stone
C
A body can have consutant velocity when it follows a
A. elliptical path B. circular path
C. parabolic path D. rectilinear path
D
The angular speed for daily rotatio of earth in rad S-1 is
A. 2 ? B. ?
C. 4 ? D. 7.3 x 10-5 rads-1
D
A cyclist cycling around a circular racing track skids because
A. the centripetal force upon him is less than limiting friction B. the centripetal force upon him is greater then limiting friction
C. the centripetal force upon him is equal to the limiting friction D. the friction between the tyres of the cycle and road vanishes
B
A cyclist cycling around a circular racing track skids because
A. the centripetal force upon him is less than limiting friction B. the centripetal force upon him is greater then limiting friction
C. the centripetal force upon him is equal to the limiting friction D. the friction between the tyres of the cycle and road vanishes