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Comparison Between Uniform And Non Uniform Motion

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## Comparison Between Uniform And Non Uniform Motion

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**Contents**• In this presentation we might see : • some differences of Uniform and Non Uniform Motion. • Some examples of Uniform and Non Uniform Motion. • Distance-time graph of Uniform and • Non uniform Motion. • Velocity-time graph of Uniform and Non Uniform Motion. • Nature of Displacement-time graph of Non uniform Motion.**Comparison Between Uniform and Non Uniform Motion**:Difference Uniform Motion NonUniform Motion • If an object travels equal distances in equal intervals of time then the object is said to perform uniform motion. • Example1: if a bike covers 10 m in 1st second and another 10 m in 2nd second and continues to travel 10 m /s then the bike is said to travel by uniform speed • If an object travels unequal distances in equal intervals of time then the object is said to be in non uniform motion. • Example1: A car moving in a crowded street.**Example2:Uniform Motion- Car A**• Example2:Non Uniform Motion- Car B**Uniform motion**Non Uniform Motion • Car A travels equal distances in equal intervals of time so it is in uniform motion. • Example 3: The movement of the hands of the clock. They move equal distances in equal interval of time. • Car B travels unequal distances in equal intervals of time so it is said to be in non uniform motion. • Example 3: An athlete running in a race.**Now we will see examples of Uniform and Non uniform motion**with help of pictures**Uniform Motion**• A bike moving on a straight road with uniform speed. • A ball moving down An inclined plane**NonUniform Motion**• A car moving with non uniform speed • A man riding bike on a rough mountain • **Distance time graph for Uniform Motion**(Uniform Speed)**From the above graph we see that distance-time graph of**uniform motion will be looking like a straight line since the objecttravels equal distances in equal intervals of time.**Distance-time graph for a Non-Uniform Motion**• The following table gives the distance covered by a bus after every 15 minutes. • From the above table we can conclude that the motion is non-uniform i.e., it covers unequal distances in equal intervals of time.**Therefore according to the information given in the table ,**the Distance-Time graph for non uniform motion will be,**From the graph in the previous slide we can see that the**graph is of oblong shape since it covers unequal distances in equal intervals of time • And from the both distance-time graph of uniform and non uniform motion we conclude that they both differ in shape.**Velocity- Time graphs of a car For Uniform And Non**Uniform Motion • When an object possesses uniform motion, its velocity-time graph is a straight line parallel to the time axis, as illustrated in the figure below.**From the above graph i.e., velocity-time graph, one can**calculate the displacement by finding the area of the shaded portion. • displacement in a time t = Area of the rectangle OABC= OA x OC • displacement = velocity x time • Again, in uniform motion, a particle undergoes equal displacement in equal intervals of time**Velocity –Time graph for Non Uniform Motion**The velocity-time graph of non uniform motion will be of oblong shape since it has different velocities at different intervals of time .**Thus we conclude that velocity time graph of uniform motion**and non uniform motion look different from one another as in uniform motion the velocity is the same throughout the time period whereas in v-t graph of non uniform motion velocity and time both increases.**Nature of Displacement -time Graph**for Non- Uniform Motion • Fig (a) represents the Displacement-Time graph when the speed of a moving object increases and Fig (b) represents the Displacement-Time graph when the speed of a moving object decreases. • From the nature of displacement-time graph we can conclude whether the object is moving with uniform speed or variable speed.**The End**• Made by • Malay • Nagda