Name
Period
Date
Scientific Methods Worksheet 3:
Multiplication and Division with Significant Figures
1. Write the two steps used to multiply or divide with significant figures.
a.
b.
For each of the following problems, begin by writing the number of significant figures
next to each measurement. Then 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!
2.
Calculate the area of a rectangle of sides 70. m by 305 m.
3.
4050. m 2
=
10.200 m
4. 1.05 s  10. m
s
=
5. Determine the volume of a block with dimensions
2.56 cm x 4.652 cm x 8.70 cm
6.
9.081 m
450 s
s=
Scientific Methods Worksheet 3
page 2
7. Determine the volume of a block with dimensions
3.4 cm x 0.02 cm x 4.50 cm
8. Determine the volume of a block with dimensions
2.505 cm x 4.652 cm x 3.0 cm
9. Determine the volume of a block with dimensions
0.500 cm x 4.538 cm x 200.04 cm
10.
v (m/s)
300
0
t (s)
5
a. Using the graph above, estimate the value of v when t = 0.
The smallest marked graduation on the vertical axis is
the value of v should be estimated to
so
.
b. Using the graph above, estimate the value of t when v = 0.
The smallest marked graduation on the horizontal axis is
the value of t should be estimated to
so
.
c. Using your answers to (a) and (b), calculate the slope of the graph with proper
significant figures and units.