ch 1 review Flashcards
how does the scientific method usually begin?
with an observation
what is precision?
the exactness of a measurement. example: a lock with a second hand is more exact than a clock with only a minute hand.
what is the best type of graph for showing changes in relationships?
a line graph
what is the best type of graph for showing comparison?
a bar graph
how are line graphs generally labeled?
with a format of y vs. x
what is the mnemonic for metric conversions? (mnemonic = a learning technique, often an abbreviation)
King Henry Died by Drinking Chocolate Milk (kilo, hecto, deka, base, deci, centi, milli)
if a clock is off by an hour, it is not…
accurate
what is the prefix for 1000?
kilo
how many numbers can you estimate in a measurement?
one number
what is an example of an inverse relation?
as the volume of a gas decreases, the pressure increases.
what is accuracy?
how close or correct a measurement is compared to the actual accepted value
a meterstick that only has markings for centimeters but not millimeters is not…
precise
what is an example of a direct relation?
as the temperature in an aerosol can rises, so does the pressure.
what is qualitive data?
data that is made on observations, not numbers.
which axis is the IV always labeled on?
the X axis
