Objectives
examples of each.
2. Describe the difference between accuracy and precision.
3. Explain what determines your accuracy in lab.
4. Explain what determines your precision in lab.
5. Give specific examples of how to improve your accuracy in lab.
6. Give a number in long form, write it in scientific notation.
7. Given a number in scientific notation, write it in long form.
8. Add, subtract, multiply, and divide numbers written in scientific notation.
9. Identify the number of significant digits in a measurement.
10. Apply the rules of significant digits for adding, subtracting, multiplying, and dividing
measurements.
11. List the SI base units and symbols for the following measurements:
a. length e. temperature
b. mass f. amount of a substance
c. time g. light intensity
d. electric current
12. Explain the differences between the SI system and the British system of
measurement.
13. Define derived units.
14. Give the SI and Non SI derived units for the following:
a. volume c. pressure
b. density d. energy
15. Know the meanings and symbols for the following common SI prefixes:
a. mega e. deci
b. kilo f. centi
c. hecto g. milli
d. deka h. micro
16. Convert between units in the metric system.
17. Estimate lengths in the metric system.
18. Use a meter stick to measure length. Give measurements to the correct number of
significant digits.
19. Estimate volumes in the metric system.
20. Use a graduated cylinder, flask, beaker, pipet, and buret to measure volumes. Give
measurements to the correct number of significant digits.
21. Explain what happens to the volume of a substance as the temperature increases or
decreases. NOTE: Water at 4 degrees Celsius is an exception to this rule.
22. Estimate masses in the metric system.
23. Use a triple beam balance and the electronic scales to measure masses. Give
measurements to the correct number of significant digits.
24. Explain the difference between mass and weight.
25. Define denisty.
26. List several possible units for density.
27. Know the following denisty facts:
a. Less dense objects float.
b. The density of a substance changes with temperature. (Explain why!)
c. Density is used as an identifying property.
d. Density does not change with the size of an object. (Explain why!)
e. Density is a physical property.
28. Define specific gravity.
29. Give the units for specific gravity.
30. State three uses of specific gravity.
31. Given a problem scenario, calculate the mass, volume, density, or specific gravity of a substance by using the correct formulas.
32. Define temperature.
33. State the direction of heat transfer.
34. Explain how a mercury or alcohol (spirit) filled thermometer works.
35. Know the following on all three temperature scales (Kelvin, Fahrenheit, and Celsius):
a. the normal boiling point of water
b. the normal freezing point of water
c. average room temperature
d. absolute zero
36. Use formulas to convert between Celsius, Fahrenheit, and Kelving temperatures.
37. Given experimental results and actual data, calculate the percent error of an
experiment.
38. Know the names and symbols for elements #26 - #50.