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Units and Measurement
Question
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Two satellites of equal masses are orbiting the earth in different orbits. Will their moment of inertia be same or different?

Answer

The satellite orbiting around the earth can be considered as particle.
The moment of inertia about earth = MR2.
Therefore, the satellite in outer orbit has more moment of inertia than that of satellite in inner orbit. 

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Some More Questions From Units and Measurement Chapter

What is the need of measurement?

Define physical quantity.

 

Give four examples of physical quantities.

Define unit.

What are the two main required characteristics of a unit?

Can we use same units for different physical quantities?

Can we use different units to measure same physical quantity?

To measure a physical quantity X, the unit U is repeatedly used for n times. What is the magnitude of physical quantity?

Does the numerical factor in the quantitative measurement depend on the system of unit used?

Is one unit sufficient to measure a physical quantity?