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The International Bureau of Weights and Measures, BIPM, is the international organization, with headquarters outside Paris France, which maintains internationally agreed definitions for multiples and sub-multiples as prefixes, and the choice and definition of the standard unitsupon which the SI system is founded. Their web pages contain much of interest.
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What word means the use of units to find a size of quantity?
To measure, or measuring is the use of units to find a size of quantity
Can a quantity have units but still be dimensionless?
No. "Dimensionless" means there are NO units involved.
What happens to units when you take the logarithm of a quantity?
When you take the logarithm of a quantity, the units of the quantity are removed.
Can a quantity have unit and still be diamensionless?
No, a quantity cannot have units and still be dimensionless. The dimensions of a quantity are determined by its units, so if a quantity has units, it has dimensions. Dimensionless quantities are those without any units.
What quantity has units of joules?
Energy has units of joules.
Does magnitude of the quantity change with change in the system of units?
No, the magnitude of a quantity does not change with a change in the system of units. The numerical value representing the quantity may change based on the system of units used, but the magnitude itself remains constant.
Is electric current a derived or fundamental quantity?
Electric current is considered a fundamental quantity in physics. It is measured in units of amperes (A) and is one of the seven base SI units.
What physical quantity is defined as units of mass per units of volume?
Density
What are the units in this quantity 30 kilometers?
Kilometers
Which dimensionless quantity has unit?
If a quantity is "dimensionless", that means it has no units, and it's just a number.
What quantity do units represent in a value?
they show the magnitude
What are the units of one-dimensional quantity?
The units of one-dimensional quantity are typically represented in terms of length, such as meters (m), centimeters (cm), or inches (in).
