Physical Science

Chapter 1: The Nature of Physical Science

The Nature of Science

1.
How are a hypothesis and a theory similar?
A)A hypothesis and a theory cannot be revised
B)Theories and hypotheses are produced by experts.
C)They are attempts to explain natural phenomena.
D)They are about equally true.
2.
Explanations of natural phenomena supported by large amounts of data are called __________.
A)hypotheses
B)data
C)theories
D)experiments
3.
__________ is the application of science to help people.
A)Data
B)Technology
C)Scientific law
D)Knowledge
4.
A(n) __________ is a well-organized procedure that tests an idea.
A)experiment
B)method
C)hypothesis
D)theory
5.
A(n) __________ is something that represents an idea or object to help people better understand it.
A)theory
B)model
C)observation
D)method
6.
The SI base unit of length is the __________.
A)meter
B)kilogram
C)liter
D)kilometer
7.
Which variable in an experiment is specifically changed by the scientist?
A)dependent variable
B)control
C)independent variable
D)standard
8.
A(n) __________ is a prediction or explanation that can be tested by experimentation.
A)method
B)theory
C)hypothesis
D)scientific law
9.
What occurs when the expectations of a scientist change how the results of an experiment are viewed?
A)data
B)revision
C)bias
D)conclusion
10.
In a controlled experiment, the single factor manipulated by the researcher is the __________ variable and the responding factor that is measured is the __________ variable.
A)controlled, common
B)controlled, uncontrolled
C)dependent, independent
D)independent, dependent
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