General Knowledge - Physics - Discussion

Discussion Forum : Physics - Section 1 (Q.No. 35)
35.
Moment of inertia is
vector
scalar
phasor
tensor
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
64 comments Page 5 of 7.

Arshad said:   1 decade ago
Why is tensor?

Jyotheeswar said:   1 decade ago
Give examples for tensors?

Nabeel said:   10 years ago
How it is tensor? We read it is a vector.

Elizabeth said:   10 years ago
Tensors are the physical quantities that have different magnitudes and different directions at a point.

E.G: Moment of inertia of a disc (along the diameter and perpendicular to the diameter).

Chandurani said:   10 years ago
When I took classical mechanics we were given definitions for an object's moment of inertia, which I understand to be a scalar quantity that describes that objects tendency to resist rotation about a fixed axis either about, or some distance from its center of mass.

I was recently reading about how an object's moment of inertia can also be described as a tensor quantity when the axis of rotation is not fixed, but arbitrary.

Naidu said:   10 years ago
Tensor means a quantity having magnitude and more than one direction. M.I has no direction. So it is scalar.

Kavya said:   9 years ago
Moment of inertia is neither a scalar, nor a vector.

Some physical quantities which are neither scalars nor vectors which is called as 'tensors'.

So, Moment of inertia, pressure, stress, density, dielectric current, density, etc. are tensors.

Aman srivastava said:   9 years ago
Tensor: Those physical quantity whose magnitude are different in different direction.

So, the moment of inertia is tensor.

Ram said:   9 years ago
Scalar = magnitude and no direction.

Vector = magnitude and one direction.

Tensor = magnitude and different direction.

Elakiya jyothi said:   9 years ago
What is the definition of moment?


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