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Questions and Answers
Which of the following is a common cause of static electricity?
Which of the following is a common cause of static electricity?
- Magnetism
- Heat
- Gravity
- Friction (correct)
What happens when a glass rod is rubbed with a silk stocking?
What happens when a glass rod is rubbed with a silk stocking?
- The glass rod loses electrons and becomes positively charged (correct)
- The silk stocking gains electrons and becomes positively charged
- The silk stocking loses electrons and becomes positively charged
- The glass rod gains electrons and becomes positively charged
Which of the following is an example of static electricity in everyday life?
Which of the following is an example of static electricity in everyday life?
- Combing dry hair and causing it to stand on end (correct)
- A magnet attracting a paperclip
- A battery powering a flashlight
- A hot stove burning your hand
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Study Notes
Static Electricity
- Friction is a common cause of static electricity.
Glass Rod and Silk Stocking
- Rubbing a glass rod with a silk stocking causes electrons to transfer from the glass to the silk, leaving the glass rod positively charged and the silk negatively charged.
Everyday Example of Static Electricity
- Walking across a carpet and then touching a metal doorknob, resulting in a spark, is an example of static electricity in everyday life.
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