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Chapter 3 Science Test
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Vocab
Terms in this set (20)
Model
Any representation of an object or process.
System
A group of parts that work together to perform a function or produce a result.
Input
The material or energy that goes into a system
Process
What happens in a system
Output
The material or energy that comes out of a system.
Feedback
Output that changes the system in some way.
Graph
A picture of your data.
Linear graph
A line graph in which the data points yield a straight line.
Nonlinear graph
A graph in which the data points do not fall along a straight line.
Percent Error
A way to determine how accurate an experimental value is.
Mean
The numerical average of a set of data.
Median
The middle number in a set of data
Mode
Mode
Range
The difference between the greatest value and the least value in the set.
Anomalous data
Data that do not fit with the rest of the data
Estimate
An approximation of a number based on reasonable assumptions
Accuracy
How close a measurement is to the true or accepted value
Precision
How close a group of measurements are to each other
SI
A version of the metric system.
Metric System
A measurement system based on the number 10.
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