Spanish test that our teacher told us we had ONE DAY TO STUDY Flashcards
What two things must a measurement have?
A number & a unit
What are the two major systems of measurement?
U.S. Customary System and Metric System
What are some advantages of using the metric system?
it is based on units of 10.
International System of Units (SI)
The standard system of measurement used by scientists around the world
Known as the metric system.
Mass
*The amount of matter in an object
*Measured in grams (g)
Length
*The distance between 2 points
*Measured in meters
Volume
The amount of space an object occupies
Measured in Liters (L)
Area
*The size of a surface
*Measured in meters (m2)
Area (rectangle)
Area (circle)
= l*w= πr2
Two ways to find the volume of a solid
- Length * Width * Height
Regular shaped solids - Liquid Displacement
Irregular shaped solids
kilo-
hecto-
deka-
k = 1000
h = 100
da =10
base unit
(no prefix) = 1
deci-
centi-
milli-
d = 0.1 (1/10)
c = .01 ( 1/100)
m = .001 (1/1000)
Base Units
m = meter g = gram L = Liter
Metric prefixes
If the prefix ends in an (i) it is < than 1.
If the prefix ends in an (o/a) it is > than 1.