Section #: 1.2
Methods of Scientists
Practice Test
1.
What is the standard SI unit of weight?
a.
pound
b.
newton
c.
gram
d.
ounce
Hint
2.
A __________ is a simplified version of a system.
a.
hypothesis
b.
theory
c.
model
d.
chart
Hint
3.
How would the values in the "Percent Carbon Dioxide" column in Figure 2 be presented in scientific notation?
Experiment 1
Experiment 2
Percent
Oxygen
Percent
Carbon
Dioxide
Percent
Nitrogen
Growth
Rate
(mm/day)
Percent
Oxygen
Percent
Carbon
Dioxide
Percent
Nitrogen
Growth
Rate
(mm/day)
1
0.03
98.97
10
21
1
78
15
10
0.03
89.97
11
21
10
69
25
20
0.03
79.97
10
21
20
59
35
30
0.03
69.97
12
21
30
49
43
40
0.03
59.97
11
21
40
39
44
50
0.03
49.97
10
21
50
29
44
a.
0.03 x 10
3
b.
3 x 10
-2
c.
3 x 10
2
d.
30 x 10
-3
Hint
4.
What is the standard SI unit for measuring length?
a.
mile
b.
meter
c.
foot
d.
liter
Hint
5.
How is 100 000 000 written in scientific notation?
a.
1 x 10
-8
b.
1 x 100
8
c.
1 x 100 000 000
d.
1 x 10
8
Hint
6.
What is an example of an SI unit of area?
a.
cm
b.
m
2
c.
g/mL
d.
cm
3
Hint
7.
How many meters are in 1 km?
a.
1000 m
b.
1/1000 m
c.
1/100 m
d.
10 m
Hint
8.
Which temperature scale is the standard in SI?
a.
the Kelvin scale
b.
the Celsius scale
c.
the absolute zero scale
d.
the Fahrenheit scale
Hint
9.
In an experiment, the results show a conclusion contrary to the hypothesis. What does this mean?
a.
The experiment was bad.
b.
The control was not done properly.
c.
The analysis was incorrect.
d.
The hypothesis must be reevluated.
Hint
10.
What is a hypothesis?
a.
A hypothesis is the answer to a scientific question.
b.
A hypothesis is the first step of the scientific method.
c.
A hypothesis is the same as identifying the problem in the scientific method.
d.
A hypothesis is a suggested explanation of an observation.
Hint
11.
What part of an experiment is used to show that results are due to the condition being tested?
a.
control
b.
dependent variable
c.
hypothesis
d.
independent variable
Hint
