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Ritujith Jayakrishnan
10
th
Grade
Clovis North High School
Chapter 1 Summary
Physics is the study of matter and energy and their relationships. Physics is basic to all
other sciences. Knowledge of physics makes us, as citizens, better able to make decisions
about question related to science and technology. Much scientific work is done in groups
in which people collaborate with one another.
Chapter 2 Summary
Meter, Second, and Kilogram are the SI base units of length, time, and mass respectively.
Derived units are combinations of base units. Prefixes are used to change SI units by
powers of 10. The method of converting one unit to another unit is called the factorlabel
method of unit conversion. Precision is the degree of exactness with which a quantity is
measured using a given instrument. Accuracy is the extent to which the measured and
accepted values of a quantity agree. The last digit in a measurement is always an
estimate. The result of any mathematical operation with measurements can never be more
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This note was uploaded on 02/25/2010 for the course BIO 1234 taught by Professor Abcd during the Spring '10 term at Zagazig University.
 Spring '10
 ABCD

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