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 2 of 7.

MAMATHA ANIL said:   9 years ago
Tensor is nothing but second degree vectors.

Bhupendra said:   9 years ago
Tensor due to magnitude changes with different directions!

Radhika said:   9 years ago
When there is no direction , only magnitude , M.I. is considered as a scalar.

When there is one direction & magnitude , it is a vector.

And when there are different magnitudes in diff. directions, it is a tensor(having more than one direction)

Hope its clear now.

Gajendra said:   9 years ago
Why the pressure is a tensor quantity?

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

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

Vector = magnitude and one direction.

Tensor = magnitude and different direction.

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

So, the moment of inertia is tensor.

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.

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.

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.


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