C1

hypothesis

an idea or explanation to something that can be proven true or false

random errors

errors due to unknown or unpredictable elements

systematic errors

errors due to experimental set-up

accurate measurement

number close to true value

precise measurement

same or similar values when repeated

positive linear correlation

both variables increase at the same time but not necessarily by the same amount

negative linear correlation

variables move in opposite directions

exponential increase

one variable increase at a greater rate than other

exponential decay

one value decreases less and less each interval

directly proportional relationship

positive relationship where variables increase in a constant ratio

inversely proportional relationship

one variable increase and decreases by fixed amount maintaining a constant ratio