Significant Digit Rules

Question 1

State the rules for Significant Digits (6 Points)

Answer 1

-Non-zero digits (1-9) are significant
-Sandwiched zeros are significant
-Trailing zeros are NOT significant if there is NO DECIMAL
-Preceding zeros to non-zero digits are NOT significant – placeholders
-Trailing zeros after decimal and non-zero digit are significant. (reflect instrument’s precision)
-Counting numbers; known constants have infinite number of significant digits.

Question 2

Metric Conversions

Answer 2

-Tera: 10^12
-Giga: 10^9
-Mega: 10^6
-Kilo: 10^3
-Hecto: 10^2
-Deca: 10^1
-Base: 10^0
-Deci: 10^-1
-Centi: 10^-2
-Milli: 10^-3
-Micro: 10^-6
-Nano: 10^-9
-Pico: 10^-12