1.2 Flashcards
what does mass measure
amount of matter
what does length measure
span of an object
what does volume measure
amount of space an object takes up
what does temperature measure
degree of hotness
what is the base unit of time
seconds (s)
what is the main temperature unit used in science
kelvin (K)
what is standard deviation
the measurement of the amount of variation in data to improve accuracy and understanding of data
what are the three steps of finding standard deviation
mean, variance, square root of variance
what is an independent variable
the variable in an experiment controlled by the experimenter and is not affected by the other variable(s)
what is a dependent variable
the variable in an experiment being measured by the experimenter and is affected by the other variable(s)
what is a direct relationship
variables increase together
indirect relationship
as one variable increases the other decreases
constant relationship
variables have no effect on each other
if a plant’s height is being measured based on the temperature of the room it’s growing in, what’s the independent variable?
temp of room
what’s the dependent variable?
plant’s height
