Usually a gram
The unit to measure the length of solid is meter. It is also measured in km, mm ,cm
The metric unit used to measure the density of a solid is grams per cubic centimeter (g/cm3). This unit represents the mass of the solid per unit volume, and is commonly used in scientific calculations and measurements of density.
cubic meter, m3
Cubic metres but dm3 can be used. i dm3 = 1 litre (L)
The Watt is the unit used to measure electric power :)
The unit measure for solid objects when measuring volume is typically cubic centimeters (cm3) or cubic meters (m3), depending on the size of the object. These units represent the amount of space that the solid object occupies in three dimensions.
The SI unit used to measure mass is kilograms. It is written as Kg.
The unit cm3 stands for cubic centimeters. Cubic centimeters is a unit of measure for reporting the volume of regular and irregular solid objects. When reporting the volume of a liquid, milliliters (mL) is the proper unit.
The unit used to measure the volume of a regular solid object is cubic units (e.g., cubic meters, cubic centimeters, cubic inches). This unit represents the amount of space occupied by the object in three dimensions.
Ampere is the unit used to measure the current.
Degrees are used to measure angles.
Class room can be measure in Meters easily :)