EC: Define and give examples of value, units, and dimensions in a given expression

Using units properly

You use values, units and dimensions all the time:

Grocery List

DEFINITION:

A value is the numerical quantity. For example: 5.2

DEFINITION:

The units tell what that quantity represents. For example: 5.2 liters.

DEFINITION:

The dimensions are the measurable properties that the units represent. For example: a liter is a unit of volume (units are a specific example of a dimensional quantity).

OUTCOME:

Define and give examples of value, units, and dimensions in a given expression

TEST YOURSELF!

Give some more examples of value, unit, dimension triplets.

In scientific apps. -> units play a central role in quantification!

Treat units as algebraic entities:

EXAMPLE:

Algebraic equation
"Unit" equation
"Unit" equation