Chapter 1 Flashcards
Measurements, Sig Figs, Scientific Notation
What is the metric unit for length?
Meters (m)
What is the metric unit for mass?
Grams (g)
What is the metric unit for volume?
Liters (L)
What is the metric unit for time?
Seconds (s)
What does this prefix mean?: Giga (G)
Billion
What is the numerical value and scientific notation of this prefix: Giga (G)
1,000,000,000
10^(9)
What does this prefix mean?: Mega (M)
Million
What is the numerical value and scientific notation of this prefix: Mega (M)
1,000,000
10^(6)
What does this prefix mean?: Kilo (k)
Thousand
What is the numerical value and scientific notation of this prefix: Kilo (k)
1,000
10^(3)
What does this prefix mean?: Deci (d)
Tenth
What is the numerical value and scientific notation of this prefix: Deci (d)
0.1
10^(-1)
What does this prefix mean?: Centi (c)
Hundredth
What is the numerical value and scientific notation of this prefix: Centi (c)
0.01
10^(-2)
What does this prefix mean?: Milli (m)
Thousandth
What is the numerical value and scientific notation of this prefix: Milli (m)
0.001
10^(-3)
What does this prefix mean?: Micro ( μ^(c) )
Millionth
What is the numerical value and scientific notation of this prefix: Micro ( μ^(c) )
0.000 001
10^(-6)
What does this prefix mean?: Nano (n)
Billionth
What is the numerical value and scientific notation of this prefix: Nano (n)
0.000 000 001
10^(-9)
How many cubic centimeters (cc) are in one milliliter (mL)?
1 cubic centimeter (cc) or 1 centimeter to the power of 3 (cm^(3) )
What is the significant figure rule for non zero numbers?
All non zero numbers are significant
What makes zero a significant figure?
- between two non zero digits
- at the end of a number with a decimal place
What makes a zero a non-significant figure?
- at the beginning of a number
- at the end of a number without a decimal
What equalitites should the answer share with the signifigant figures when multiplying/dividing?
The answer must have the same number of significant figures as the original number with the fewest significant figures
What equalitites should the answer share with the signifigant figures when adding/subtracting?
The answer must have the same number of decimal places as the original number with the fewest decimal places
Rule for Rounding Numbers if the first digit to be dropped is between 0 and 4
Drop the number and the proceeding digits
Rule for Rounding Numbers if the first digit to be dropped is between 5 and 9
Round up the last digit to be retained by adding 1, then drop it and the proceeding digits
How many significant figures are in exact numbers?
Infinite
What is the Scientific Notation Format
y x 10^(x)
What is the coefficient in scientific notation?
The y that represents a number that is greater than or equal to 1, and less than 10
What is the exponent in scientific notation?
The x that is a positive or negative whole number
How to convert from Standard Number to Scientific Notation
- Move the decimal point to give a number between 1 and 10
- Multiply the result by 10^(x), where x = the number of places the decimal was moved
Decimal movement rules for converting from standard number to scientific notation
- Decimal moved the left, the exponent is positive
- Decimal moved to the right, the exponent is negative
How to convert from Scientific Notation to Standard Number
- See if exponent is positive or negative
- Move the decimal the amount of spaces that match the exponent
Decimal movement rules for converting from scientific notation to standard number
- When the exponent is positive, move the decimal point x places to the right
- When the exponent is negative, move the decimal point x places to the left
