Vocabulary
Objective; based on senses
What is an Observation
meters, liters, kilograms, seconds, and Celsius (or Kelvin)
What are the base unit of measurement?
How many sig figs are in 21
2
A technique for converting numbers into different units, without changing their value
What is Dimensional Analysis?
Subjective; based on perceptions
measures how correct or close to the truth a measurement is.
What is Accuracy?
How many sig figs in 3.01
7 days=1 week (what is that called)
Conversion factor
Data based on qualities
What is Qualitative Data?
measures how specific or consistent a measurement is.
What is precision?
How many sig figs in 1,500
2
21 days into seconds
1,814,400 s
Data based on quantities (numbers and measurements)
What is Quantitative Data
1,800 mm to cm
180 cm
How many sig figs in 1,500.
4
9,602 grams into pounds
21.17 lbs
Ratios of equivalent values (meaning they equal 1)
What is a Conversion Factor?
Convert 275°F to Kelvin.
408 K
How many sig figs in 0.002304
4
5,500 millimeters into yards
6.0 yds