Derived SI Units: e.g. velocity, force, energy, pressure, volume, density 

Volume is the amount of space taken by matter ("something"). 
Do: Give some common units of volume:
Q: What devices are used to measure volume of liquids in the lab:
Density= how much mass is present in a given volume of a sample (thing under examination). 
The denser the object, the heavier it feels compared to others of same size (same volume). 
Q: But how do we compare the density of objects of different sizes (volumes)? 
A: We use a mathematical relation to obtain quantitative information:
Density is the ratio of mass over volume of a given sample 
Or in mathematical notation, d=
Q: What are the units used to express densities of solids and liquids?
Q: Look at Table 1.6. What kind of information does it provide?
Do: Find at least two interesting features in the data presented on Table 1.6.
Do: Suggest better units to express the density of gases.
Q: Why do you think density is temperature dependent?
Q: What do you expect to happen to the density of a sample when the temperature is increased?

Uncertainty in Measurement
Q: Where do we find exact numbers?
Q: Where do we find inexact numbers?
Q: What are the major causes of errors in measurements? How can we avoid them?
Q: Which device in figure 1.20 provides the highest accuracy? 
Q: Which one provides the highest precision?
Q: What would you rather have, high accuracy or high precision? Explain.

Significant Figures: 
Do: Read pages 21-24 (including exercises). 
Do the practice exercises. See your instructor during office hours in case of difficulty
Dimensional Analysis or How to solve a problem through the use of conversion factors.
Q: What is a conversion factor? 
Do: Write 3 meaningful conversion factors.
Do: Read the sample exercises 1.9, 1.10 and 1.11 and solve the corresponding practice exercises.