21. State and explain the four types of motion with an example of each
Answers
Answer:
There are different types of motion:
1. translational motion.
2.rotational motion.
3.periodic motion.
4.non periodic motion.
1. translational motion
Translational motion is the motion by which a body shifts from one point in space to another.
example of translational motion is the the motion of a bullet fired from a gun
2. Rotational motion
A rigid body performs a pure rotational motion, if each particle of the body moves in a circle, and the centre of all the circles lie on a straight line called the axes of rotation
example of rotational motion is fan moving in the house, table fan, hand blender's blades..
3. Periodic motion
This is a type of motion where the object repeats its motion after a fixed interval of time.
Examples pendulum of a clock, motion of child on a swing etc.
4. Non periodic motion
A motion that repeats itself is considered a non-periodic motion but not at regular periods of time.
Example of non periodic motion is Swaying of the branches of a tree. Motion of a bouncing ball under the action of gravity and friction...
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