U.S. Customary Units

There are five basic units for measuring capacity in the U.S. customary measurement system. These are the fluid ounce, cup, pint, quart, and gallon. These measurement units are related to one another, and capacity can be described using any of the units.

A liter would be used to measure much larger volumes of liquid, like the capacity of a car’s fuel tank.

Distance measures length. For example, the distance of a road is how long the road is. In the metric system of measurement, the most common units of distance are millimeters, centimeters, meters, and kilometers.

The 7 Fundamental SI Units

Volume. Litre (L) and millilitre (mL) are non-SI units, but because they are easier to write and pronounce, they are in common use.

The liter in Table 6 deserves comment. This unit and its symbol l were adopted by the CIPM in 1879….

Definition: Second The second (symbol s) is a unit for time, and one of seven SI base units. It is defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom at zero kelvins.

In the UTC time standard, a minute on rare occasions equals to 59 or 61 seconds. Hour : An hour (symbol: h or hr) is a measurement unit of time which is equal to 60 minutes, or 3,600 seconds in modern usage. It is a non-SI unit, but is accepted for use with SI, the symbol is h.

From the meter, several other units of measure are derived such as the: unit of speed is the meter per second (m/s). The speed of light in vacuum is 299 792 458 meters per second….

The pound or pound-mass is a unit of mass used in British imperial and United States customary systems of measurement….Pound (mass)