Chemistry - Graphs Flashcards
(31 cards)
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What is a graph?
A diagram showing the relationship between variables.
Why are graphs used in science?
To show patterns, trends, and relationships in data.
What type of graph is used for continuous data?
A line graph.
What type of graph is used for categoric data?
A bar chart.
What is the x-axis used for?
The independent variable.
What is the y-axis used for?
The dependent variable.
What does the independent variable mean?
The variable you change.
What does the dependent variable mean?
The variable you measure.
Why must graphs have labels on the axes?
So you know what data is being shown.
Why should a graph have a title?
To explain what the graph is about.
What tool should you use to draw straight lines?
A ruler.
What should you always include on the axes?
Units of measurement.
What kind of scale should you use on a graph?
An even and appropriate scale.
What is a best-fit line?
A smooth line that shows the trend of the data.
What does a straight line on a graph suggest?
A linear relationship.
What does a curved line on a graph suggest?
A non-linear relationship.
What does a horizontal line on a graph mean?
No change in the dependent variable.
What does a steep line mean on a graph?
A rapid change in the dependent variable.
What is an anomaly?
A result that does not fit the pattern.
Why might a result be an anomaly?
Due to experimental error or mistake.
What does the slope of a line show?
The rate of change.
How do you identify a pattern in a graph?
By looking at how the data points change.
What does it mean if the line goes up?
The dependent variable is increasing.
