| A | B |
|---|
| graph | a visual representation of data |
| scatterplot (XY graph) | a graph of two variable thought to be related |
| independent variable | a variable that you believe might influence another variable |
| independent variable | manipulated variable |
| dependent variable | the variable that you believe is influenced by the independent variable |
| dependent variable | responding variable |
| direct relationship | a relationship in which one variable increases with an increase in another variable |
| inverse relationship | a relationship in which one variable decreases when another increases |
| experiment | a situation specifically set up to investigate relationships between variables |
| system | a group of variables that are related |
| experimental variable | the variable that change in an experiment |
| variable | a factor that affects how an experiment |
| control variable | a variable that is kept constant (the same) in an experiment |
| trial | each time an experiment is tried |
| experimental technique | the exact procedure that is followed each time in an experiment is repeated |
| procedure | a collection of all the techniques you use to do an experiment |
| distance | the amount of space between two areas |
| position | a variable that tells location relative o an origin |
| origin | a place where the position has been given the value zero |
| speed | describes how quickly an object moves, calculated by dividing the distance traveled by the time it takes |
| average speed | the total distance divided by the total time for a trip |
| instantaneous speed | the actual speed of a moving object at any moment |
| vector | a variable that gives direction information included in its value |
| velocity | a variable that tells you both speed and direction |
| axis | one of two (or more) number lines that form a graph |
| coordinates | values that give a position relative to an origin |
| constant speed | speed that stays the same and does not change |
| slope | the ratio of the rise (vertical change) to the run (horizontal change) of a line on a graph |
| slope | rise / run |
| speed | distance / time |
| speed (formula) | v=d/t |
| speed | velocity |
| time (formula) | t=d/s |
| distance (formula) | d= s•t |
