Tag: some examples of derived units

Questions Related to some examples of derived units

Among the following identify derived quantities?

physics measurements and units some examples of derived units fundamental and derived quantities fundamental and derived units

  1. Speed

  2. Temperature

  3. Volume

  4. Mass

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Correct Option: A,C
Explanation:

(A) Speed $\displaystyle = \frac{distance}{time}$ - a derived quantity of length and time.
(B) Temperature - fundamental quantity.
(C) Volume (cube of length) - a derived quantity of length.
(D) Mass - fundamental quantity.

Which of the following is larger unit of density ?

physics measurements and units some examples of derived units fundamental and derived quantities fundamental and derived units

  1. $gm^{-3}$

  2. $gkm^{-3}$

  3. $kgm^{-3}$

  4. $gcm^{3}$

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Correct Option: D
Explanation:
m is the mass of an object divided by its volume. Density often has units of grams per cubic centimeter (g/cm3). Remember, grams is a mass and cubic centimeters is a volume (the same volume as 1 milliliter).