Questions and Answers
What does Terra (T)-unit represent?
10^12 unit
What does Giga (G)-unit represent?
10^9 unit
What does Mega (m)-unit represent?
10^6 unit
What does Kilo (k)-unit represent?
Signup and view all the answers
What does Hecto (h)-unit represent?
Signup and view all the answers
What does Deca (da)-unit represent?
Signup and view all the answers
What does UNIT represent?
Signup and view all the answers
What does Deci (d)-unit represent?
Signup and view all the answers
What does Centi (c)-unit represent?
Signup and view all the answers
What does Milli (m)-unit represent?
Signup and view all the answers
What does Micro (µ)-unit represent?
Signup and view all the answers
What does Nano (n)-unit represent?
Signup and view all the answers
What does Pico (p)-unit represent?
Signup and view all the answers
Is an estimate digit a significant figure?
Signup and view all the answers
Where is the estimated digit found?
Signup and view all the answers
Is a counting value such as people at a party a significant figure situation?
Signup and view all the answers
Are constant conversion factors significant figures?
Signup and view all the answers
Are all non-zero numbers significant?
Signup and view all the answers
How many significant figures are in 305?
Signup and view all the answers
How many significant figures are in 3555.00?
Signup and view all the answers
How many significant figures are in 0.0355?
Signup and view all the answers
How many significant figures are in 0.0200?
Signup and view all the answers
How many digits are in 3500?
Signup and view all the answers
How many significant figures are in 3.500 x 10^3?
Signup and view all the answers
What determines the correct number of significant figures when adding or subtracting?
Signup and view all the answers
What determines the correct number of significant figures when multiplying or dividing?
Signup and view all the answers
With conversions, the correct number of significant figures comes from?
Signup and view all the answers
Write 560,000 in scientific notation.
Signup and view all the answers
Rewrite 8.34 x 10^-2.
Signup and view all the answers
What does accuracy measure?
Signup and view all the answers
What does precision measure?
Signup and view all the answers
What is the formula for density?
Signup and view all the answers
What is the density of water?
Signup and view all the answers
Study Notes
Metric Prefixes
- Terra (T) represents 10^12 units.
- Giga (G) represents 10^9 units.
- Mega (M) represents 10^6 units.
- Kilo (k) represents 10^3 units.
- Hecto (h) represents 10^2 units.
- Deca (da) represents 10^1 unit.
- UNIT represents 10^0 unit.
- Deci (d) represents 10^-1 unit.
- Centi (c) represents 10^-2 unit.
- Milli (m) represents 10^-3 unit.
- Micro (µ) represents 10^-6 unit.
- Nano (n) represents 10^-9 unit.
- Pico (p) represents 10^-12 unit.
Significant Figures (Sig-Figs)
- An estimated digit is considered a significant figure.
- The estimated digit can be found as the last significant figure.
- Counting values, like the number of people, are not treated as significant figures.
- Constant conversion factors do not count as significant figures.
- All non-zero numbers are significant figures.
- Examples of significant figures:
- The number 305 has 3 significant figures.
- The number 3555.00 has 6 significant figures.
- The number 0.0355 contains 3 significant figures.
- The number 0.0200 possesses 3 significant figures.
- The number 3500 has 2 significant figures.
- The scientific notation 3.500 x 10^3 has 4 significant figures.
Mathematical Operations and Significant Figures
- In addition or subtraction, the correct number of significant figures comes from the number with the fewest decimal places.
- In multiplication or division, the total significant figures are determined by the number with the fewest significant figures.
- For conversions, the correct number of significant figures derives from the initial value.
Scientific Notation
- 560,000 in scientific notation is written as 5.6 x 10^5.
- 8.34 x 10^-2 can be rewritten as 0.0834.
Measurement Concepts
- Accuracy refers to how close a measurement is to the actual true value.
- Precision measures how closely grouped multiple measurements are to each other.
Density
- Density is defined as mass divided by volume (m/v).
- The density of water is established at 1 g/mL.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge of metric prefixes with these flashcards covering various units of measurement. Each card provides a prefix and its corresponding numerical value based on powers of ten. Perfect for students studying chemistry or any science involving measurements!
