Chapter 1: Measurements Flashcards
Can you mix systems of units?
Systems of units CANNOT be mixed.
What is mass density (ρ)?
The mass per unit volume of a given substance.
UNIT for mass density:
kg/m^3
If a substance is uniform throughout, and a sample has mass m and volume v, then:
ρ = (m/v)
The SI unit system uses ___, ___, and ___ for its length, mass & time measurements respectively.
Meter (m), kilogram (kg), and second (s).
The CGS unit system uses ___, ___, and ___ for its length, mass & time measurements respectively.
Centimeter (cm), gram (g), and second (s).
The English unit system uses ___, ___, and ___ for its length, mass & time measurements respectively.
Foot (ft), slug, and second (s).
What factor is associated with the prefix giga- (symbol G)?
10^9
What factor is associated with the prefix mega- (symbol M)?
10^6
What factor is associated with the prefix kilo- (symbol k)?
10^3
What factor is associated with the prefix centi- (symbol c)?
10^-2
What factor is associated with the prefix milli- (symbol m)?
10^-3
What factor is associated with the prefix micro- (symbol µ)?
10^-6
What factor is associated with the prefix nano- (symbol n)?
10^-9
What factor is associated with the prefix pico- (symbol p)?
10^-12
