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Unit 1 Review (Part2)
Test Description: Unit 1 Review (Part2)
Instructions: Answer all questions to get your test result.
1) A(n) ___________________________is a spoken or written summary of observations.
A
explanation
B
description
C
hypothesis
D
inference
2) A(n) __________________________ is an interpretation of observations.
A
explanation
B
hypothesis
C
prediction
D
description
3) The ______________________________________________________________________________is the internationally accepted system of measurement based on the metric system, that is almost universally used through out the scientific community around the world.
A
International System of Units
B
None of These
C
International Community of Scientific Cooperation
D
International Measurement Code
4) A ________________________is a defined unit in a system of measurment that is based on an object or event in the physical world.
A
base unit
B
scientific notation
C
significant figure
D
prefix
5) A metric___________________ is a unit prefix that precedes (comes before) a basic unit of measure to indicate a multiple or fraction of the unit.
A
baseunit
B
prefix
C
scientific notation
D
significant figure
6) _________________________________ is a description of how close a measurement is to an accepted or true value.
A
Precision
B
Accuracy
C
Implication
D
Inference
7) ________________________________ is a description of how similar or close to measurements are to each other.
A
accuracy
B
precision
C
proximity
D
cluster grouping
8) ______________________________________ is a method of writing or displaying very small or very large numbers in a short form.
A
Significant figuring
B
None of these
C
Fractioning
D
Scientific notation
9) _______________________________ are the number of digits in a measurement that are known with a certain degree of reliability.
A
Scientific notation
B
Kelvins
C
Moles
D
Significant figures
10) If someone chews gum during a test, they will get a better grade. In the previous hypothesis, what is the independent variable?
A
These are all controlled variables.
B
The grade earned on the test.
C
The temperature of the classroom.
D
Whether or not someone chews gum during a test.
11) If someone chews gum during a test, they will get a better grade. In the previous hypothesis, what is the dependent variable?
A
The temperature of the classroom.
B
Whether or not someone chews gum during a test.
C
These are all controlled variables.
D
The grade earned on the test.
12) A __________________________ is an experiment or observation designed to minimize the effects of variables other than the independent variable.
A
controlled experiment
B
controlled variable
C
hypothesis
D
conclusion
13) ____________________________ are the factors in an experiment do not change. They are also referred to as controlled variables.
A
determinant
B
conclusion
C
Constants
D
variable
14) A ___________ is an element, feature or factor in an experiment that is liable to vary or change.
A
variable
B
constants
C
unchangers
D
conclusions
15) The __________ is used to study how a change in the independent variable affects the dependent variable.
A
Experimental Group
B
Control Group
C
hypothesis
D
Controlled Variable
16) The __________ contains the same factors as the experimental group, but the independent variable isn't changed.
A
Control Group
B
Controlled variable
C
hypothesis
D
Experimental Group
17) ________________________ uses words to describe what is observed in an experiment.
A
Quantitative Data
B
Qualitative Data
18) ________________________ uses numbers to describe what is observed in an experiment.
A
Quantitative Data
B
Qualitative Data
*select an answer for all questions
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