Question

physical quantities
1.
Area
Length x breadth
Volume
Length x breadth x height
3
Mass density
Mass/volume
4
Frequency
1 time period
5
Velocity, speed
Displacement/time
Acceleration
Velocity /time
7.
Force
Mass x acceleration
8.
Impulse
Force x time
Work, Energy
Force x distance​

Answer 1

Answer:

I think it is fifth one.no sure

Answer 2

Answer:

Every measurement has two parts. The first is a number (n) and the next is a unit (u). Q = nu. For Example, the length of an object = 40 cm. The number expressing the magnitude of a physical quantity is inversely proportional to the unit selected.

If n1 and n2 are the numerical values of a physical quantity corresponding to the units u1 and u2, then n1u1 = n2u2. For Example, 2.8 m = 280 cm; 6.2 kg = 6200 g.

Explanation:

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