Unit 2

On completion of the unit you should be able to:

1. define the following terms: mass, volume, temperature, significant figures, density and specific gravity.
2. identify the number of significant figures in a measurement.
3. round off the results of calculations to the correct number of significant figures.
4. express measurements in scientific notation with the correct number of significant figures.
5. identify the SI units commonly used to measure mass, volume, length and temperature.
6. define the commonly used metric prefixes.
7. perform conversions using conversion factors.
8. given any of the following (mass, volume and density), calculate the unknown.
9. given any two of the following (mass, volume and specific gravity), calculate the unknown.

MEASUREMENT
2.1 Metric system

Reading: Hebden – page 9 – 16
2.2 Temperature measurements
2.3 Scientific notation – to be covered by Physics. Apply the concepts when carrying out calculations in this course.
2.4 Dimensional analysis
Reading: Hebden – page 19 – 23
2.5 Precision accuracy and uncertainty – to be covered by Physics. Apply the concepts when carrying out calculations in this course.

2.6 Significant figures – to be covered by Physics. Apply the concepts when carrying out calculations in this course.

2.7 Calculations involving significant figures – to be covered by Physics. Apply the concepts when carrying out calculations in this course.

Reading: Hebden – page 26 – 34
2.8 Density
Reading: Hebden – page 24 – 25
2.9 Specific gravity
PROBLEMS:
Significant figures
Unit conversion
Word problems

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LAB INSTRUCTORS

Jennifer Wolf SW3-4090
Hsin Kuo SW3-4605
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