Measurements in Chmistry Chapter 2
Terms
undefined, object
copy deck
- Physical quantity
- A physical property that can be measured
- Unit
- A defined quanity used as a standard of measurement
- SI Units
- Units of measurement defined by the International System of Units
- Mass
- A measure of the amount of matter in an object
- Weight
- A measure of gravitational force that the earth or other large body exerts on an object
- Scientific notation
- A number expressed as the product of a number between 1 and 10, times the number 10 raised to a power.
- Rounding off
- A procedure used for deleting nonsignificant figures
- Factor-label method
- A problem-solving procedure in which equations are set up so that unwanted units cancel and only the desired units remain
- Conversion factor
- An expression of the numerical relationship between two units
- Energy
- The capacity to do work or supply heat
- Specific heat
- The amount of heat that will raise the temperature of 1 g of a substance by 1*C
- Specific gravity
- The density of a substance divided by the density of water at the same temperature
- mega
- M
- kilo
- k
- hecto
- h
- deka
- da
- deci
- d
- centi
- c
- milli
- m
- micro
- can't make that one, but know it's the only one that's not a normal letter
- nano
- n
- pico
- p
-
Quantity:
Mass -
SI UNIT-Kilogram (kg)
Metric Unit-Gram (g)
Equivalents-1Kg =1000g
=2.205 lb -
Quantity:
Length -
SI Unit- Meter (m)
Metric unit- Meter (m)
Equivalents-1m = 3.280ft -
Quantity:
Volume -
SI Unit- Cubic meter (m^3)
Metric Unit- Liter (L)
Equivaltent- 1 m^3 =1000 L
=264.2 gal -
Quantity:
Temperature -
SI Unit- Kelvin (k)
Metric Unit-Celsius degree (*C)
Equivalents- 1K = 1*C
1*C = 1.8*F -
Quantity:
Time -
SI Unit- Second (s)
Metric Unit- Second (s)