For your better entry test preparation and better Physics MCQs preparation, in this section, we are going to post** Circular Motion MCQs.**

In physics, circular motion is a movement of an object along the circumference of a circle or rotation along a circular path. It can be uniform, with a constant angular rate of rotation and constant speed, or non-uniform with a changing rate of rotation.

**Circular Motion MCQs**

**1. The rotational K.E of the 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

**2. A hoop and disc have same mass and radius. Their rotational K.E are related by an equation**

A. K.E hoop = K.E disc

B. K.E hoop = 2K.E disc

C. K.E hoop = 1/2K.E disc

D. K.E hoop = 4K.E disc

**3. The critical speed of an artificial satellite is**

A. 8 Kms-1

B. 8.1 Kms-1

C. 7.9 Kms-1

D. 8 ms-1

**4. Geostationary satellite completes one rotation around the earth in**

A. 3 hours

B. 6 hours

C. 12 hours

D. 24 hours

**5. The radius of geostationary orbit from the centre of the earth is nearly**

A. 42000km

B. 36000km

C. 24000 km

D. 18000 km

**6. According to Einstein, the gravitational interaction is possible between**

A. material objects only

B. material objects and electromagnetic radiation only

C. electromagnetic radiations

D. none of the above

**7. One radian is equal to**

A. 67.3°

B. 57.3°

C. 87.3°

D. 60°

**8. The period of a circular motion is given by**

A. T = πv

B. T = πw

C. T = 2πr

D. T = 2πr/v

**9. The direction of the linear velocity of a body moving in a circle is**

A. along the axis of rotation

B. along the tangent

C. directed towards the centre

D. directed away from the centre

**10. When a body moves in a circle, the angle between its linear velocity and angular velocity is always**

A. 180°

B. 0°

C. 90°

D. 45°

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