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  • Motion in Physics: Definition, Displacement, Distance & Velocity
    In physics, motion is defined as the change in position of an object over time. This change in position can be described by:

    * Displacement: The overall change in position from the starting point to the final point, regardless of the path taken. It's a vector quantity, meaning it has both magnitude and direction.

    * Distance: The total length of the path traveled by an object. It's a scalar quantity, meaning it only has magnitude.

    * Velocity: The rate of change of displacement over time. It's a vector quantity, meaning it has both magnitude (speed) and direction.

    * Acceleration: The rate of change of velocity over time. It's also a vector quantity, meaning it has both magnitude and direction.

    Types of Motion:

    * Linear motion: Motion in a straight line.

    * Rotational motion: Motion around a fixed axis.

    * Oscillatory motion: Repetitive back-and-forth motion.

    * Projectile motion: Motion of an object thrown or launched into the air.

    Important Note: An object is considered to be in motion if its position relative to a reference point changes. This reference point is often called the frame of reference.

    For example, a passenger sitting in a moving train is at rest relative to the train but in motion relative to the ground.

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