What is motion?Define various types of motion.

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Motion is the change in position of the object with respect to time and its reference point. The different types of motion are :

1. Simple harmonic motion – (e.g. pendulum).

2. Periodic motion

3. Rectilinear motion (Linear motion) – motion which follows a straight linear path, and whose displacement is exactly the same as its trajectory.

4. Reciprocating (i.e. vibration)

5. Brownian motion (i.e. the random movement of particles)

6. Circular motion (e.g. the orbits of planets)

7. Rotary motion – a motion about a fixed point. (e.g. Ferris wheel).

8. Curvilinear motion – It is defined as the motion along a curved path that may be planar or in three dimensions.

9. Rotational motion

10. Rolling motion - (e.g. the wheel of a bicycle)

11. Oscillation

12. Combination motions - Combination of two or more above listed motions