Uniform Circular Motion

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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

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A car moves with constant speed 10 m s-1 in a circular path of radius 10 m. The mass of the car is 1000 kg. Who or what is providing the required centripetal force for the car? How much is it?

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

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

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Uniform circular motion is a case of accelerated motion.

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Earth moves round the sun with uniform velocity.

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

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Name the physical quantity which changes continuously in a uniform circular motion.

(Velocity/Speed)

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

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Suppose a boy is enjoying a ride on a merry-go-round which is moving with a constant speed of 10 ms. It implies that the boy is 

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

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The earth moves around the sun with a uniform velocity.

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

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

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

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

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

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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.

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

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

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