Standards of Measurement. Standard – exact quantity that people agree to use to compare measurements. 2. Each measurement must include a. Number b. Unit Ex: 5 centimeters 1 gallon. 3. Two common systems of measurement: A. English System (foot, inches)
agree to use to compare measurements.
2. Each measurement must include
Ex: 5 centimeters
A. English System (foot, inches)
B. Metric system (meter, centimeter)
Is the SI system more accuratethan the English System because scientists use it?
5. In the US, the National Institute of Standards maintains standards and sets style conventions.
Ex. 75 000 vs 75,000
distance from the North Pole to the
equator but was off 0.2millimeter due to miscalculation of flattening of earth from
today a meter = distance light travels
in 1/299,792,458 of a second
Base 10 – scaled on multiples of 10
A) MULTIPLY by 10 – move decimal to the RIGHT
a) 7.23 x 10 = 72.3
b) 9,786 x 100 = 978,600
c) 0.0045 x 1000 = 4.5
a) 6.0/10 = 0.6
b) 9,786 / 100 = 9.786
c) 0.45 / 1000 = 0.00045