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