# PS-1.5 Data Analysis Question Preview (ID: 1978)

### Data Tables, Graphs, Dimensional Analysis. TEACHERS: click here for quick copy question ID numbers.Answers? Play games to get them!

In a data table
a) values for the IV are recorded in the first (left) column, and values for the DV are recorded in the second (right) column
b) values for the DV are recorded in the first (left) column, and values for the IV are recorded in the second (right) column
c) units are not needed, as they are understood.
d) values not agreeing with the hypothesis may be left out.

Graphs
a) plot the IV on the X-axis and the DV on the Y-axis
b) plot the DV on the X-axis and the IV on the Y-axis
c) do not need a title, unlike data tables
d) must always be line graphs in scientific reports

A graph can show a relationship of DIRECT variation between the IV and the DV if
a) it shows a straight line passing through the origin
b) it shows a curved line that never crosses either axis.
c) it shows a straight line parallel to the X-axis
d) it shows a straight line parallel to the Y-axis

A graph can show a relationship of INVERSE variation between the IV and the DV if
a) it shows a curved line that never crosses either axis.
b) it shows a straight line passing through the origin.
c) it shows a straight line parallel to the X-axis.
d) it shows a straight line parallel to the Y-axis.

The best type of graph to show non-continuous data (data that is in catagories like
a) a bar graph.
b) a line graph.
c) a circle graph.
d) an astrological chart.

The type graph best suited to continuous quantitative data is
a) a line graph.
b) a bar graph.
c) a circle graph.
d) an astrological chart.

If you are given the value for other variables, you can solve for an unknown variable with
a) a formula.
b) a calculator.
c) a hypothesis.
d) dimensional analysis.

Dimensional analysis uses conversion factors to
a) change the units of a measurement.
b) change the value of a measurement.
c) solve for an unknown variable.
d) help plot graphs.

As technology improves (as when the microscope was invented)
a) science concepts can be studied more completely and accurately.
b) basic science investigations become less important.
c) advancement of science tends to slow down.
d) there is less need for the sciences.

A scientific model
a) is used to make scientific concepts easier to understand.
b) is a completely accurate description of what is being described.
c) never changes, as it is already perfect.
d) are not useful in making predictions.

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