Introduction-to-Motion.pptx mdsfdghdfshgdgs

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1. Introduction to Motion Motion is a fundamental concept in physics. It describes the change in an object's position over time. Understanding motion is crucial for explaining various phenomena in our daily lives, from the movement of planets to the flow of traffic. by shreyash agarwal

2. Types of Motion 1 Linear Motion An object moves in a straight line, with constant or changing speed. 2 Rotational Motion An object moves in a circular path around a fixed axis. 3 Periodic Motion An object repeats its motion after a fixed time interval, like a swinging pendulum. 4 Oscillatory Motion A special case of periodic motion where the object moves back and forth about a fixed point, like a vibrating string.

3. Uniform Motion Definition Motion where an object travels equal distances in equal intervals of time, meaning its speed is constant. Examples A car moving at a steady speed on a straight road, a train traveling at a constant velocity on a straight track. Key Feature No acceleration, meaning the velocity remains constant, and the object doesn't change its speed or direction.

4. Non-Uniform Motion 1 Changing Speed The object accelerates, either increasing or decreasing its speed over time. 2 Changing Direction The object changes its path of motion, resulting in a change in velocity even if the speed remains constant. 3 Combination The object simultaneously changes both its speed and direction, resulting in complex motion.

5. Displacement, Velocity, and Acceleration Quantity Definition Unit Displacement Change in position of an object Meter (m) Velocity Rate of change of displacement Meter per second (m/s) Acceleration Rate of change of velocity Meter per second squared (m/s²)

6. Equations of Motion First Equation v = u + at Second Equation s = ut + 1/2 at² Third Equation v² = u² + 2as

7. Graphical Representation of Motion Distance-Time Graph Shows the position of an object over time, with a straight line indicating uniform motion and a curved line indicating non-uniform motion. Velocity-Time Graph Shows the velocity of an object over time, with a horizontal line indicating constant velocity and a sloping line indicating acceleration. Acceleration-Time Graph Shows the acceleration of an object over time, with a horizontal line indicating constant acceleration and a sloping line indicating changing acceleration.

8. Applications and Real-World Examples Vehicle Motion Understanding motion is essential for designing and controlling vehicles. Space Travel Motion principles are used to calculate trajectories and optimize spacecraft maneuvers. Sports Athletes use motion principles to improve their performance and techniques. Earth's Movement Understanding the motion of the Earth around the sun explains seasons and other phenomena.

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