1
Chapter 1 Worksheet
Science and measurement
Name________________________
1. Tell how many sig. figs. are in each number.
100 _________ 10.0 _____ 0.0234 ____ 238 _____ 0.56000 _____
3. Perform the following calculations and write your answer in the correct number of sig. figs.
a. 4.00 x 3.3 x 0.9800 x 0.0076 = b. 90.00 x 4.786 =
456
c. 0.897 + 2.37 + 15.2 =
4. Rounding the following numbers to 3 significant figures.
2389 _____ 0.0700409 ______ 25000 _____ 987656 ______
5. Write the following in scientific notation
12345 __________________ 0.00897 ____________
45678990 _______________ 0.000000000004589 ____________
6. Write in standard notation
2.345 x 10-4 _________________ 8.90 x 109 ____________________________
4.756 x 103 ____________________ 3.619 x 10-8 _________________________
7. Convert the following
345 Kg =______________________________________ mg
0.00456 L = ___________________________________ ml
34567 ns = ____________________________________ cs
0.0000008 Mg = _________________________________ pg
876500 μm = _______________________________________ m
2.60 x 1014 ps = __________________________________ s
8.4567 x 10-8 Gw = _______________________________ mw
4.78000 x 102 cm = _______________________________ Km
8. What is the standard form of scientific notation? What is the range of m?
9. When graphing, how do you determine the correct increment for the graph?
10. Find X or θ in each triangle
a.
11.5 cm 13.3 cm
40.0
X
b.
9.25 miles 14.67miles
X
c. 310 N
125N 1120
X
d. 103 N
θ
50.0 N 60.0N
e.
15m
12m
46o θ
-----------------------
40.0o
................
................
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