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Units And Measurement

Question

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Does the angular momentum of a planet revolving around a star remain constant over the entire orbit even if the orbit is highly elliptical?

Solution

Yes, the angular moment of a planet revolving around the star remains conserved. The angular momentum lost os gained by the sun and vice versa. Hence, angular momentum always remains conserved.

Some More Questions From Units and Measurement Chapter

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?

Can a physical quantity have two or more units? Give example.

What are fundamental quantities?

How many fundamental quantities are there in mechanics?

How many fundamental quantities are there in Physics?

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