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Flashcards in Scientific Experimentation Deck (44)
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77

Why don't we draw lines between bars on a bar graph?

There is no data between the bars on a bar graph.

78

Why do we draw lines between ponts on a line graph?

To represent the expected values of the unmeasured data between the measured points.

79

Why do we typically avoid putting "breaks" in the axes of graphs?

It distorts the appearance of the data.

80

When do we put "breaks" in the axes of graphs?

When we are willing to live with the distorted appearance of the data so that we can zoom in on a specific region of the data.

81

Scientific experiments investigate the effect of one ___________ on another.

variable

83

Graphs are visual representations of data that help scientists to detect _________ in the data.

patterns

90


Must be in the form of a statement.

A hypothesis

91

Levels of independent variable

This is the number of different values of the independent variable you use in your lab.  

92

What is the absolute minimum number of levels of independent variable you can use in a lab and still get a useful line graph?

5

(This is the lowest number of levels of independent variable where your data begins speaking back to you.)

93


What do we call this type of indenting?

These are "hanging indents."

Soon, you will be expected to use these on your lab.  Make sure you understand what it is so you don't have to recopy your lab.

94

What do we call it when you indent the first line of a paragraph, and the rest of the lines are not indented.

This is a regular indent.

95

What do you call it when you indent the second, third, and fourth lines of a paragraph, but do not indent the first line?

It is called a "hanging indent."  

(The reason you have so many "hanging indent" flashcards is because, for some reason, physical science students have trouble understanding what a hanging indent is.   Then when asked to use them at certain places on their lab reports, they don't....)

96

Which of these samples is a properly done "Hanging Indent?"  Is it the one on the top or the one on the bottom?

97

In the statement below, is the term "period" appropriately used?

 

"The time of the period of the pendulum is 3.1 seconds.
 

NO

The definition of "period" is the "length of time of one complete oscillation."  

Thus, you would only need to say?

"The period of the pendulum is 3.1 seconds"