Test 1 Example

PART I - Multiply Choice

Directions:  Using Scantron 882-E, mark the correct response with a #2 pencil.  Erase all corrections completely.  Good luck!

1.       What is the number 8020.3 expressed in scientific notation?

a.       8.0 x 10^-3

b.       8.0 x 10³

c.        8.0203 x 10³

d.       8.020 x 10³

e.        8.020 x 10^-3

2.       Perform the following operation:

                                714.3 - 28.52 = _______

a.       685.78

b.       685

c.        685.80

d.       685.780

e.        685.8

3.       How many significant figures are in 0.00290?

a.       2

b.       3

c.        4

d.       5

e.        6

4.        Which of the following units is the largest?               

a.       Meter

b.       Kilometer

c.        Decimeter

d.       Micrometer

e.        Millimeter

5.       What is the conversion factor for the relationship between picograms and hectograms?

a.       1 pg = 1 x 10¹² hg

b.       1 x 10¹² pg = 1 hg

c.        1 x 10¹⁴ pg = 1 hg

d.       1 pg = 1 x 10¹⁴ hg

e.        1 x 10^-14 pg = 1 hg

6.       What is the unit of length in the SI system?

a.       Liter

b.       Meter

c.        Kilometer

d.       Gram

e.        Calorie

7.       What is the conversion factor for the relationship between millimeters and femtometers?

a.       1 mm = 1 x 10¹⁵ fm

b.       1 Mm = 1 x 10¹² fm

c.        1 mm = 1 x 10^-12 fm

d.       1 mm = 1 x 10¹³ fm

e.        none of the above

8.       What is the conversion factor for the relationship between megaliters and kiloliters?

a.       1  x 10³ ML = 1 kL

b.       1 x 10⁶ ML = 1 kL

c.        1 mL = 1 x 10³ kL

d.       1 ML = 1 x 10³ kL

e.        1 ML = 1 x 10^-3 kL

9.       What is the conversion factor for the relationship between cubic nanometers and cubic micrometers?

a.       1 x 10⁹ nm³ = 1 µm³

b.       1 x 10⁶ nm³ = 1 µm³

c.        1 x 10³ nm³ = 1 µm³

d.       1 x 10^-9 nm³ = 1 µm³

e.        1 x 10⁹ nm³ = 1 mm³

10.    Express 5,000 correctly in scientific notation.

a.       5  x 10⁴

b.       5 x 10³

c.        5.000 x 10³

d.       5.000 x 10⁴

e.        5.00 x 10²

11.    Which of the following numbers is the smallest?

a.       8.66 X 10^-13

b.       5.93 x 10^-2

c.        5003

d.       0.0000005003

e.        12.8 x 10¹⁵

12.    Which of the following measurements has five significant figures?

a.       20,450.

b.       30,430

c.        0.0005

d.       3.000 x 10⁶

e.        All of the above numbers have five significant figures

13.    A  cubic centimeter (cm3 or cc) has the same volume as a __________________

a.       cubic liter

b.       cubic inch

c.        cubic decimeter

d.       centimeter

e.        milliliter

14.    Round 89.9 to two significant figures.

a.       89

b.       90

c.        9.0 x 10¹

d.       9.0 x 10^-1

e.        88

15.    The number 0.00480 has how many significant digits?

1. 2             
2. 3
3. 4
4. 5
5. 6

16.    The SI Prefix milli is equal to

a.       10^-3

b.       10^-4

^c.          10^-5

d.       10^-6

e.        None of the above              

Part II- Free Response

A.        Calculations:  Perform the following operations and express your answer with the correct number of significant figures and in SCIENTIFIC NOTATION.  Show your work or your answer is VOID.

B.       Read the following meniscus.  The following measurement is _________________________.