Ch. 2 Flashcards
how many centimeters in one inch?
2.54 cm = 1 in
how many grams in one pound?
454 g = 1 lb
density equation
density=mass/volume
convert Celsius to Kelvin
add 273 units
define English system
a nondecimal system of measurement without basic units
define metric system
a decimal system of measurement with basic units
define the basic unit of length in the metric system
meter (m)
define the basic unit of mass in the metric system
gram (g)
define the basic unit of volume in the metric system
liter (L)
define the basic unit of time in the metric system
second (s)
define the comprehensive system of measurement with seven base units
International System
a statement of two equivalent values
unit equation
a statement of two exactly equal values
exact equivalent
a ratio of two quantitates that are equivalent
unit factor
the relationship between a fraction and its inverse
reciprocal
a procedure for solving problems that proceeds compared to an entire sample
percent %
the volume occupied by a cube 1 cm on a side
cubic centimeter (cm^3)
a technique for determining volume from the amount of water displaced
volume by displacement
the amount of mass in one unit of volume
density
the ratio of the density of a liquid compared to the density of water at 4 °C
specific gravity
the flow of energy from an object at a higher temperature to an object at a lower temperature
heat
the average energy of molecules in motion
temperature
the basic unit of temperature in the SI system
Kelvin unit (K)
the amount of heat required to raise 1g of substance 1 °C
specific heat
the amount of heat required to raise 1g of substance 1 °C
calorie (cal)
a unit of energy in the SI system
joule (J)
