Chapter. 2

Question 1

a positive exponent (n) means 1 multiplied by the 10 (n) times

Answer 1

ex. 10^0 means 1 is multiplied by 10 zero times.

Question 2

A negative exponent (n) means 1 divided by 10 (n) times

Answer 2

ex. 1x10^-1 = 1/10 = .1

Question 3

How many rules of significant Figures are there?

Answer 3

6

Question 4

1. All nonzero digits are significant

Answer 4

ex. 1.05 = 3

Question 5

2. Interior zeros are significant

Answer 5

Ex. 50.1 = 3

Question 6

3. Trailing zeros that fall AFTER a decimal point are significant

Answer 6

Ex. 5.10 = 3

Question 7

4. Trailing zeros that fall BEFORE a decimal point are significant.

Answer 7

50.00 = 4

Question 8

5. Leading zeros are not significant.

Answer 8

0.0005 = 1

Question 9

Trailing zeros at the end of a number but before an implied decimal point are ambiguous and should be avoided by using scientific notation.

Answer 9

350 is unclear, write as 3.5x10^2

Question 10

Metric system

Answer 10

units of measurement used by the scientific community

Question 11

prefix multiplier

Answer 11

changes the value of a unit by powers of 1. ex. KILO makes a meter 10^3.

Question 12

kilo-

Answer 12

1000

Question 13

hecto-

Answer 13

hundred - 10^2

Question 14

Deca

Answer 14

10^1

Question 15

Deci

Answer 15

tenth = 10 ^-1

Question 16

CEnti

Answer 16

hundredth - 10^-2

Question 17

Milli

Answer 17

Thousandth - .001 = 10 ^ -3

Question 18

Micro -

Answer 18

.000001 - 10^-6

Question 19

1 KM

Answer 19

.6214 miles

Question 20

1 meter

Answer 20

39.37 inches or 1.094 yards

Question 21

1 foot

Answer 21

30.48 centimeters

Question 22

1 inch

Answer 22

2.54 centimeters

Question 23

1 kilogram

Answer 23

2.205 pounds

Question 24

1 pound

Answer 24

453.59 grams

Question 25

1 ounce

Answer 25

28.35

Question 26

1 liter

Answer 26

1000 mililiters or 100 cubic centimeters or 1.057 quarts

Question 27

1 gallon

Answer 27

3.785 liters

Question 28

1 mile

Answer 28

1.609 km