static electricity(a trial production)

Electricity Introduction Today, 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 1 Try an investigation below and 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 needle before rubbing them Pa per Straw 1 Rubbing Pa per Straw 2 Rubbing Another straw for a bearing Attract or keep away (repel) After identifying result, review this investigation

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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

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