Class 11 Physics Rotational Motion Topper’s Short Notes for IIT JEE and Neet Free PDF Will be Given here. For All JEE And Neet Aspirants Rotational Motion is a Tricky and a Little bit Tough Chapter, So if You Have This Kind of Short Notes Where all Formula PDFs are Included with Important Definitions Then it Can be Easier to Score Good Marks in Rotational Motion.
So, In this Article, You Will Get The High-Quality Rotational Motion Toppers Short Notes Which can be used in IIT JEE and Neet exam preparation and also in Class Tests.
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Rotational Motion Short Notes
Here is Few Basic Definitions Which is Important to Get Basic info about this chapter and Then PDF Link is in Below You can Download Read and Also can Share to Your Friends!
Rigid Body
- A rigid body is one in which the distances between different particles of the body do not change even though forces are acting on them
- Axis of rotation: The line along which the body is fixed is known as the axis of rotation. Examples for rotation about an axis are a ceiling fan and a merry-go-round etc.
- In pure rotation of a rigid body about a fixed axis, every particle of the rigid body moves in a circle which lies in a plane perpendicular to the axis and has its centre on the axis. Every point in the rotating rigid body has the same angular velocity at any time.
Centre of Mass
The centre of mass of a body is a point where the entire mass of the body can be supposed to be concentrated. The nature of motion executed by the body shall remain unaffected if all the forces acting on the body were applied directly at this point.
Angular velocity
It is defined as the time rate of change of angular displacement and is given by w=dθ/dt
- Moment of inertia of a rigid body about a given axis of rotation is defined as the sum of the product of masses of all the particles of the body and square of their respective perpendicular distances from the axis of rotation.
- Moment of inertia is a scalar quantity. Its SI unit is kgm2 and its dimensional formula is [M0L1T0] It depends upon
- Position of the axis of rotation
- Orientation of the axis of addition
- Shape of the body
- Size of the body
- Distribution of mass of the body about the axis of rotation
- Radius of gyration: It is defined as the distance from the axis of rotation at which the whole mass of the body was concentrated, the moment of inertia of the body would be the same as the actual distribution of the mass of the body. It is denoted by the symbol K.
- Theorem of perpendicular axes: The moment of inertia of a planar lamina about an axis perpendicular to its plane is equal to the sum of its moments of inertia about two perpendicular axis concurrent with a perpendicular axis and lying in the plane of the body. Iz = Ix + Iy
Class 11 Physics Rotational Motion Short Notes PDF Download
Rotational Motion Unit is One of The Tricky Chapter, With These Short Notes You Can Revise Whole Chapter within a Few Minutes. Rotational Motion Chapter Short Notes are Useful for IIT JEE and Neet Aspirants also You can Use it in your class Tests, Click on. The Button and Download PDF
