Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
20 Chemistry: Matter and Change
Solving Problems: A Chemistry Handbook
SOLVING PROBLEMS:
A CHEMISTRY HANDBOOK
CHAPTER
2
If the points on the graph are connected, they are considered
continuous. You can read data that falls between the measured
points. This process is called interpolation. You can extend the line
on a graph beyond the plotted points and estimate values for the
variables. This process is called extrapolation. Extrapolation is less
reliable than interpolation because you are going beyond the range
of the data collected.
Chapter 2 Review
27. Which SI units would you use to measure the following
quantities?
a. the amount of water you drink in one day
b. the distance from New York to San Francisco
c. the mass of an apple
28. How does adding the prefix kilo- to an SI unit affect the
quantity being described?
29. What units are used for density in the SI system?
Are these base units or derived units? Explain your answer.
30. Is it more important for a quarterback on a football team to be
accurate or precise when throwing the football? Explain.
31. A student takes three mass measurements. The measurements
have errors of 0.42 g, 0.38 g, and 0.47 g. What information
would you need to determine whether these measurements are
accurate or precise?
32. What conversion factor is needed to convert minutes to hours?
33. What kind of graph would you use to represent the following
data?
a. the segments of the population who plan to vote for a
certain candidate
b. the average monthly temperatures of two cities
c. the amount of fat in three different kinds of potato chips
d. the percent by mass of elements in Earth’s atmosphere
e. your scores on math quizzes during a year
f. the effect of a hormone on tadpole growth
20 Chemistry: Matter and Change
Solving Problems: A Chemistry Handbook
SOLVING PROBLEMS:
A CHEMISTRY HANDBOOK
CHAPTER
2
If the points on the graph are connected, they are considered
continuous. You can read data that falls between the measured
points. This process is called interpolation. You can extend the line
on a graph beyond the plotted points and estimate values for the
variables. This process is called extrapolation. Extrapolation is less
reliable than interpolation because you are going beyond the range
of the data collected.
Chapter 2 Review
27. Which SI units would you use to measure the following
quantities?
a. the amount of water you drink in one day
b. the distance from New York to San Francisco
c. the mass of an apple
28. How does adding the prefix kilo- to an SI unit affect the
quantity being described?
29. What units are used for density in the SI system?
Are these base units or derived units? Explain your answer.
30. Is it more important for a quarterback on a football team to be
accurate or precise when throwing the football? Explain.
31. A student takes three mass measurements. The measurements
have errors of 0.42 g, 0.38 g, and 0.47 g. What information
would you need to determine whether these measurements are
accurate or precise?
32. What conversion factor is needed to convert minutes to hours?
33. What kind of graph would you use to represent the following
data?
a. the segments of the population who plan to vote for a
certain candidate
b. the average monthly temperatures of two cities
c. the amount of fat in three different kinds of potato chips
d. the percent by mass of elements in Earth’s atmosphere
e. your scores on math quizzes during a year
f. the effect of a hormone on tadpole growth