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PS-1.1: Hypotheses
Test Description: Define, identify, generate hypotheses
Instructions: Answer all questions to get your test result.
1) A hypothesis is a
A
conclusion of a scientific investigation
B
wild guess
C
true statement
D
reasonable, testable, explanation of an observation
2) Hypotheses
A
may or may not be supported by the experimental data.
B
must always be supported by the experimental data.
C
are always true.
D
are of no value if the experimental data do not support them.
3) Sources of information used to write hypotheses must be
A
accurate.
B
credible.
C
relevant.
D
all of the above.
4) Credible means
A
unsupported.
B
related to the topic of the investigation.
C
correct - based on supported data.
D
trustworthy.
5) Accurate means
A
trustworthy.
B
unsupported.
C
related to the topic of the investigation.
D
correct - based on supported data.
6) Relevant means
A
related to the topic of the investigation.
B
correct - based on supported data.
C
trustworthy.
D
unsupported.
7) The results of an experiment
A
all of the above.
B
can either support or not support the hypothesis.
C
are only useful if they support the hypothesis.
D
can prove that a hypothesis is true.
8) The formula for writting a hypothesis is
A
If the [IV] increases or decreases, then the [DV] increases or decreases.
B
The [IV] always decreases when the[DV] increases.
C
If the [DV] increases or decreases, then the [IV] increases or decreases.
D
The [IV] increases when the [DV] increases.
9) Which of the following is a correctly written hypothesis?
A
When water freezes, it gets colder.
B
If the amount of hydrogen ions in a solution increases, then the pH will decrease.
C
I think the sunlight will affect the plants.
D
All baseballs are spheres.
10) When hypotheses are tested over and over and always support the data,
A
they cannot be changed or modified.
B
they become known as laws or principles.
C
they are accepted as true.
D
their is no need to keep on testing them.
*select an answer for all questions
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