Uniform Circular Motion
Uniform Circular Motion: Overview
In this topic, we will discuss uniform circular motion which takes place when an object follows a circular path at a constant speed. It also explains centripetal acceleration with the help of examples and figures.
Important Questions on Uniform Circular Motion
A car moves with constant speed in a circular path of radius . The mass of the car is . Who or what is providing the required centripetal force for the car? How much is it?

A body is travelling in a circle at a constant speed. It _____.

When a body is moving with constant speed in a circular path, its acceleration is zero.

Uniform circular motion is a case of accelerated motion.

Earth moves round the sun with uniform velocity.

Name the physical quantity which remains constant in the uniform circular motion.

Name the physical quantity which changes continuously in a uniform circular motion.
(Velocity/Speed)

It is possible for something to accelerate but not change its speed if it moves in a _____. Choose from (straight path / circular path)

Suppose a boy is enjoying a ride on a merry-go-round which is moving with a constant speed of . It implies that the boy is

A body is moving around a circular path and is covering equal distances in equal intervals of time. The body is moving with:

The earth moves around the sun with a uniform velocity.

A particle of mass is executing a uniform circular motion on a path of radius . If is the magnitude of its linear momentum, then what is the radial force acting on the particle?

In a uniform circular motion, every point on the body will have same _____ velocity but different linear velocity.

The force which is needed to make an object travel in a circular path is called _____ force.

Name the acceleration experienced by an object in a circular motion, along the radius, towards the centre of the circle.

A body is traveling in a circle at constant speed. It

If the number of sides of the polygon is increased to _____, the length of the sides will decrease to a point so as to keep the total length of the path the same, and the polygon will take the shape of a perfect circle.

Which is the force responsible for the circular motion of object:

When a body moves in a circular path with uniform speed, its motion is called _____.

Which is the force responsible for the circular motion of object:
