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
The quantity that remains constant in uniform circular motion is :


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.

What type of motions are exhibited by a vehicle and its wheels?

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.

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

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

When a car runs on a circular track with a uniform speed, its velocity is said to be changing. This is because:

Let us assume that the earth is revolving around the sun in a circular path and there are no other objects which exert gravitational force on earth other than the sun. If the gravitational force due to the sun would suddenly vanish, then earth ________.
