5. Experimental tasks a) Place on the work table two groups of small pieces of paper. Will the result be different? obta

[answerhappygod]

5. Experimental tasks
a) Place on the work table two groups of
small pieces of paper. Will the result be different?
obtained by electrifying a plastic rod and another made of
glass, by separately approximating the electrified rods
to the pieces of paper?
b) Take a plastic ruler and place it near the
electric burner, so that it receives heat. Later
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rub it with a piece of newspaper and bring it close to
a fine stream of water, or bring it close to the hairs of your
arm or to small pieces of paper. What happen?
Describe in your notebook the phenomena you observe.
6. How to prove that the electric charge acquired by a
glass rod rubbed with a piece of silk, it is different
of the charge acquired by a plastic rod rubbed with
a piece of paper?
7. How many types of electric charge exist in nature?
How have they been called and with what signs are they
represent?
8. How do bodies that have charges of equal
sign? How do bodies with electrical charges of
contrary signs?
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9. Why during electrification by friction, bodies
take on equal charges but opposite signs?
10. What happens when a charged metal sphere
negatively comes into contact with another identical sphere
What was initially downloaded? How will the
charge of one sphere relative to the other?
11. What experiments would you perform to show that some
bodies are conductors and others are not?
12. Name some good and bad drivers.
13. Why are electrical cords, as well as power tools
do electricians own rubber linings?
14. What happens when we bring a charged rod closer
positively to a discharged electroscope?