Name
Period
Date
Scientific Methods Review Worksheet
1.
10.3
4.00
a. What is the slope with units for this
graph?
c. Is the y-intercept significant? Test using
the 5% rule. State the y-intercept with
units and write a sentence explaining
what it means.
b. What is the average price of a compact
disc?
d. Write the mathematical model
that describes the graph. Be sure
to use appropriate variables and
units!
e. If the relationship holds, how much would 15.0 compact discs cost? Be sure to
use the correct significant figures and units.
Scientific Methods Review Worksheet
Page 2
For each of problems 2 – 4, in the blank record the correct measurement with units,
followed by the appropriate explanation of the rule utilized.
2.
The smallest marked graduation on the meter stick is
so the measurement should be estimated to the
of a meter
of a meter.
The smallest marked graduation on the meter stick is
so the measurement should be estimated to the nearest
centimeters
centimeter.
The smallest marked graduation on the meter stick is
so the measurement should be estimated to the
of a meter
of a meter.
The smallest marked graduation on the meter stick is
so the measurement should be estimated to the
centimeter
of a centimeter.
The smallest marked graduation on the meter stick is
so the measurement should be estimated to the
meter
of a meter.
The smallest marked graduation on the meter stick is
so the measurement should be estimated to the nearest
centimeters
centimeters.
3.
4.
5. Write the three steps used to add or subtract with the proper precision.
a.
b.
c.
6. For each problem, circle the least precise measurement. In the left blank record the
value of the indicated calculation as given by the calculator. In the right blank
express the answer to the appropriate precision. Remember, all answers must have
units!
a. 10. m + 12.36 m + 120.5 m =
Scientific Methods Review Worksheet
Page 3
b. 1042.5 m – 200.30689 m =
c. 3045.004 cm + 245.78 cm + 350 cm =
7. Count the number of significant figures in each measurement.
a. 2005 m
b. 10 000 kg
c. 0.050500 m
d. 402.0 cm
e. 240.0 g
f. 0.00000050 km
8. Write the two steps used to multiply or divide with significant figures.
a.
b.
9. For each of the following problems, begin by writing the number of significant figures
next to each measurement. In the left blank record the value of the indicated
calculation as given by the calculator. In the right blank express the answer to the
appropriate number of significant figures. Remember, all answers must have units!
a. 420 m  5.10 s 
s
b.
c.
3.56 m
s =
14.25 s
0.060 m
s =
0.00220 s
Scientific Methods Review Worksheet
Page 4
10. Bob Thebillder slowly built addition floors onto his existing apartment building. Every
two months he would measure the height of his building as shown in the graph
above.
a. Which is the independent variable
and which is the dependent
variable?
b. State the slope with units and write a
sentence explaining what it means.
Independent
Dependent
c. Is the y-intercept significant? Test using the 5% rule. State the y-intercept with
units and the write a sentence explaining what it means.
d. Write the mathematical model that
e. Using the mathematical model, how tall
describes the graph above. Be sure
was his building after 9.0 months? Use
to use appropriate variables and
the correct number of significant
units!
figures!