Question

# Explain in your own words, giving one example each. (a) Linear motion (b) Oscillatory motion (c) Circular motion (d) Random motion (e) Periodic motion

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## (a) Linear motion: An object is said to have linear motion if it moves from one point to another in a straight line. For example: The motion of a moving car on a straight road. (b) Oscillatory motion: The type of motion in which the object moves to and fro repeatedly about a mean or a fixed position is known as oscillatory motion. For example: The movement of pendulum of a clock. (c) Circular motion: An object is said to possess circular motion if it moves from one point to another in such a way that its distance from a fixed point always remains constant. For example: The movement of the blades of a fan. (d) Random motion: The type of motion in which the direction of motion and the speed of an object changes continuously is called random motion. For example: Children playing in a garden. (e) Periodic motion: An object is said to possess periodic motion if it moves in such a way that it repeats its motion after a certain interval of time. For example: The motion of a swing.

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