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Basics of Biology
What is a qualitative observation?
What units are used for volume?
Basics of Biology
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Answers
1
What units are used for volume?
cm3 or mL
cm3 or L
cm or mL
cm or L
2
What is a qualitative observation?
described by both words and numbers
none of the above
described by words or terms
described by numbers
3
True or false: Lack of consistency and accuracy is a source of error in an experiment
True
False
4
What is density?
the amount of space an object takes up
mass per unit volume
mass per unit area
the amount of space inside an object
5
What is a hypothesis?
to vary or change
the observed variable in an experiment
tentative explanation for an observation
a manipulated variable in an experiment
6
What is the base unit of the amount of substance?
ampere
gram
mole
second
7
What is the base unit of mass
gram
mole
kelvin
meter
8
What is a dependent variable?
to vary or change
a manipulated variable in an experiment
the observed variable in an experiment
a standard against which other conditons can be compared
9
The X axis on a graph is the:
dependent variable
independent variable
none of the above
controlled variable
10
Which of the following are sources of error?
Sampling Error
Instrumental Error
Experimental Design
All of the above
11
What is the base unit of length?
kelvin
second
meter
gram
12
What is the controlled variable in an experiment?
the variable in which does not change
a manipulated variable in an experiment or study
the observed variable in an experiment or study
the variable that changes throughout the experiment
13
What is a hypothesis?
a manipulated variable in an experiment
to vary or change
tentative explanation for an observation
a standard against which other conditions can be compared
14
What is a quantitative observation?
neither words or numbers
described by words or terms
described by both numbers and numerical values
described by numerical values
15
What units are used for density?
g/mm
g/cm2
g/cm3
g/cm
16
What is volume?
the amount of space inside an object
mass per unit volume
none of the above
the amount of space an object takes up
17
The Y axis on a graph is the:
none of the above
independent variable
controlled variable
dependent variable
18
What is an independent variable?
tentative explanation for an observation
to vary or change
a manipulated variable in an experiment
an observed variable in an experiment
19
A graph is a visual display of information or data
False
True
20
What is a variable?
the observed variable in an experiment
a manipulated variable in an experiment
to vary or change
tentative explanation for an observation
