Question

Lab Exercise IB Examples: 1000 is expressed as 1 x 10) (1000 is greater than (1000 is greater than 1, so the exponent is positive) tion of 1. so the exponent is negative) 0.001 is expressed as 1 x 10-3 (0,001 is a fraction of 1 Note: you cannot just count the number of Os, you ne need to count the number of places th decimal moves to make the coefficient be greater Now lets combine all 3 rules: 0.00000000000308 IS CAP 0000000308 is expressed as 3.08 x 10-12 The coefficient is 3.08 The base is 10 The exponent is -12 (the original number is a fract 15-12 (the original number is a fraction of 1. so the exponent is negative) I. Scientific Notation Practice Problems 1. Convert 25000 to scientific notation. 2. Convert 0.00025 to scientific notation. 3. Convert 12,495,000,000 to scientific notation. 4. Convert 0.0000000238 to scientific notation. 5. Convert 2.54 x 106 to standard notation 6. Convert 5.3 x 10-9 to standard notation. II. The Metric System The United States is one of the few countries that still use the awkward and antionate system of measurement based upon units of inches, pounds, gallons, and Fahrenheit f 10 and is the most common system of measurement used in system is a system based on units of 10 and is the most common system of me science and industry. Conversions between the units of the metric system can be perfe The basic units of measurement in the metric system are: can be performed by simply shifting the decimal place. The basic units of measurement in the met Length = Meter (m) Mass = Gram (g) Volume = Liter (L)

Answer 1

Scientific notation is just a short hand way of expressing gigantic numbers like 1,500,000 or incredibly small numbers like 0.0000000000075.

Standard notation is the normal way of writing numbers. Key Vocabulary. mantissa = this is the integer or first digit in any Scientific Notation.

(Ex. Scientific notation is 1.3 ×106 which is just a different way of expressing the standard notation of the number 1,300,000)

Answers:

I. Scientific Notation Practice Problems :- Answers: - 1 25000 2, 5xiol 2 0.00025 - 2,5x104 3) 12,495,000,000 1.25 x 100 4 0.0000000238 → 2.38 x 10° 5) 2.54x106 2540000 6) 5.38109 → 0.0000000053 10 I. Metric System Practice Problems identifying abbrevations ce 17. nm = 8. mL = 1 9. em= I 10 Mg = I 11. Kg = nanometers milli-liters micro-meters micro-grams. kilo-grams II - Metric-to-Metric conversation: 6.8 em = 6.8x103 nm (62 Lum= 103 nm)