Unit 1: Measurements Flashcards
What are the (7) SI base units (dimension, unit name, unit abbreviation)?
Mass; kilogram (kg)
Length; meter (m)
Time; second (s)
Temperature; kelvin (K)
Electric current; ampoule (A)
Amount of substance; mole (mol)
Luminous intensity; candela (cd)
What are derived units?
Combinations of base units.
What are the (8) SI prefixes (prefix, prefix symbol, multiple)
Mega; M (106)
Kilo; K (103)
Deci; d (10-1)
Centi; c (10-2)
Milli; m (10-3)
Micro; μ (10-6)
Nano; n (10-9)
Pico; p (10-12)
Equation for density
Extensive vs intensive properties. Give examples.
Intensive properties DO NOT depend on amount of substance. (Density, temperature)
Extensive properties depend on amount of substances. (Mass, volume)
Mass vs weight
Mass is constant, weight changes.
Temperature vs heat
Temp.:
Hotness/coldness relative to another substance.
Measure of average kinetic energy.
Heat:
Energy that flows when there’s a difference in temperature.
Celsius and kelvin
Kelvin = Celsius + 273.15
Celsius = kelvin - 273.15
1 L =
1 mL =
dm3
cm3