Name: 
 

Chapter 1 Pre Test



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 

A measurement standard is defined as ____.
a.
a system of prefixes
b.
the distance between two points
c.
the exact quantity people agree to use for comparison
d.
the interval between two events
 

 2. 

The variable plotted on the horizontal or x-axis is called the ____.
a.
dependent variable
c.
variable with the largest range
b.
independent variable
d.
variable with the smallest range
 

 3. 

The process of gathering information through the senses is called ____.
a.
analysis
c.
hypothesis
b.
observation
d.
inference
 

 4. 

A rule or principle that describes what happens in nature is a ____.
a.
hypothesis
c.
scientific law
b.
problem
d.
theory
 

 5. 

An explanation of an event that is based on repeated observations and experiments is a ____.
a.
hypothesis
c.
problem
b.
scientific law
d.
theory
 

 6. 

A standard for comparison that helps to ensure that the experimental result is caused by the condition being tested is the ____.
a.
constant
c.
dependent variable
b.
control
d.
hypothesis
 

 7. 

A factor in an experiment that changes from the manipulation of the independent variable is the ____.
a.
constant
c.
dependent variable
b.
control
d.
hypothesis
 

 8. 

Studying the effect of one thing on another in order to test a hypothesis is a(n) ____.
a.
exercise
c.
constant
b.
experiment
d.
problem
 

 9. 

A factor that is manipulated in an experiment to change the dependent variable is the ____.
a.
constant
c.
control
b.
dependent variable
d.
independent variable
 

 10. 

The application of scientific knowledge to help people is ____.
a.
a discovery
c.
pure science
b.
a hypothesis
d.
technology
 



 
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