fundamental
Fundamental quantity
Volume is derived, from length.
A change in the position and a period of time is the correct answer
Derived units are simply more complex because they are made up of several (that is, usually, by more than one) base unit. It is just the way they are defined; for example, in the SI, distance and time are base units, while speed is a derived unit (distance / time). You can just as well invent a system of units where - for example - time and speed are base units; in this case, distance would be a derived unit.
and a period of time
Length is fundamental, area is derived.
Length (cubed) and time.
FT is a derived unit and not a fundamental unit. The fundamental unit cannot be broken down into different forms. The derived units on the other hand are made up of the fundamental units.
the differentiate between fundamental quantity and derived quantity?
fundamental
Fundamental quantity
Length is a fundamental quatity. But area is a derived one. Because area is nothing but the product of length and length. Volume too is a derived one as volume is length x length x length. Mass in fundamental. But density is mass / volume. Hence density is derived. Density is mass / lengthx lengthx length Same way time is fundamental . BUt speed is derived as speed is distance ie length divided by time. So speed is length/ time. Electric current is fundamental. But electric charge is a derived one as charge = current x time. Work done is derived as work is got right from mass x length x length / time x time. Why so? Force x distance gives work. Mass x acceleration = force. But acceleration = velocity/ time. In turn velocity = length / time. So acceleration is length / time x time Hence force mass x length / time x time THere by work mass x length x length / time x time.
Volume is derived, from length.
(A) and a period of time.
a fundamental unit is fixed in unlike a derived unit which is varying
fundamental data type makes up the derived data type