Ch. 15 Electrostatics, Part 1
PHY213, Lecture 1
1
PHY 213 Summer 2009
Dr. Zeps (lec), Kres Neely(rec, lab),
Zheng Zhu(lab)
s
Each academic week starts Thursday and ends
Wednesday.
s
Homework is due by the end of day every
Tuesday (WebAssign). A homework quiz will
be given each Wednesday.
s
There will be a problem given in class every
day to be solved in recitation the following
day.
s
There will be 2 Mid-term Exams and a
cumulative Final Exam.
s
Read the Syllabus fully. Bring questions
tomorrow.
Chapter 15
Electric Forces and Electric Fields
HW (Due Tuesday, June 16
th
)
Ch 15: C.Q.-1,3,4,5,11,12,13,14
Probs-4,8,10,12,14,15,18,22,27,30,31,
40,42,43,46,47
First Observations –
Greeks
s
Observed electric and magnetic
phenomena as early as 700 BC
s
Found that amber, when rubbed,
became electrified and attracted
pieces of straw or feathers
s
Also discovered magnetic forces by
observing magnetite attracting iron
Benjamin Franklin
s
1706 – 1790
s
Printer, author,
founding father,
inventor,
diplomat
s
Physical Scientist
s
1740’s work on
electricity changed
unrelated
observations into
coherent science