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they show the magnitude
Allan Heller
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Is a variable used to represent a quantity whose value may change or vary?
Yes. Although it can also be used for constants whose value is not yet known.
What Expressions that use a letter to represent and unknown quantity?
An algebraic expression uses a letter to represent an unknown quantity.
What should you do to change a value in SI units to a value in U.S. customary units?
What should you do to change a value in SI units to a value in U.S. customary units?
What does M represent for quantity?
1000
How can absolute value help you to understand the size of quantity?
The absolute value IS the size of a quantity.
Is a value a number that represents a quantity or an amount?
Yes, a value can represent a quantity or amount.
Numbers?
A number is an arithmetic value used to represent quantity.
What is the value of a conversion factor ratio?
A ratio that's used to convert units always has the value of ' 1 ' with no units. If it were anything different, then you could not multiply it or divide it by any quantity without changing the value of the quantity, which is a basic no-no.
What quantity and unit does the abbreviation K represent?
Quantity K is metric for 1000. For units, it can also refer to Kelvin temperature. It can also refer to Kinetic energy.
A fraction whose numerator and denominator represent the same quantity but use different units?
A unit conversion ratio
Why is the fundamental value of a quantity not changed when the quantity is multiplied by a conversion factor?
the conversion factor merely changes the number in such a way that it fits the new units the physical quantity is not changed
Is 4.11 a measurement in inches?
It could be but not necessarily. It is just a value and could represent that quantity of anything.
What are the two parts of a measurements?
-the quantity (magnitude,numerical value). -the units (in inch,meter,light year).
What are the two parts of measurements?
The quantity (magnitude, numrical value) and the units (eg inch, metre, light year)
Is a variable used to represent a quantity whose value may change or vary?
Yes. Although it can also be used for constants whose value is not yet known.
What is done to a variable to represent a unknown quality?
Nothing specifically is "done" to the variable; variables are generally used to represent either:* A quantity that is initially unknown (and should be solved for), or * A quantity that can be anything - to analyze what happens no matter what a certain value is.
Is calcium's relative value per ounce pound or ton?
Relative value is a dimensionless quantity, and so it shouldn't matter what units you want to use, as long as you are consistent.
