static electricity(a trial production)
DESCRIPTION
I don't have good idea to express the introduction of static electricityTRANSCRIPT
Electricity
IntroductionToday, electricity is the one of important energy. Bulbs, televisions, motors and computers use electricity. Electricity has two important forms: static electricity and electric current.Usually, electricity is supplied as electric current through cables, wires for our life.
What is the static electricity?Investigation 1Try an investigation below and
Let’s review Investigation
1
rub two straws with a piece of tissue
Bring a straw close to a plastic bag
Bring a straw close to paper which you rubbed
Paper
Pierce a straw with needlebefore rubbing them
Paper
Straw1Rubbing
Paper
Straw2Rubbing
Another straw for a bearing
Attract or keep away (repel)
After identifying result, review this investigation
Result1
Result2
Keep away(repel)
Attract