Static Electricity (T)

• What can you describe by the end of this video?

  How electrons move between insulators
• What leads to static electricity when insulators are rubbed together?

  Movement of electrons from one insulator to another
• What happens to a person's hair when they hold a Van de Graaff generator?

  The hair stands on end due to static electricity
• What materials are good conductors of electricity?

  Metals
• Why do metals conduct electricity well?

  Electrons can easily flow through metals
• What are examples of insulators?

  Plastic and glass
• Why can't electrons move through insulators?

  Electrons cannot move through insulators
• What happens when cloth is rubbed against an insulator like plastic?

  Electrons move from plastic to cloth
• What charge does cloth acquire after rubbing with plastic?

  Negative charge
• What charge does plastic acquire after rubbing with cloth?

  Positive charge
• What is static electricity?

  Charge buildup due to electron movement
• What might happen if you walk across a carpet?

  You may receive an electric shock
• What happens in a Van de Graaff generator?

  Electrons pass from rollers to a belt
• What occurs as the belt moves in the generator?

  Electrons transfer to Earth from the belt
• What charge does the top region of the generator become?

  Positively charged
• What does the metal dome of the generator do?

  Stores positive charge and spreads it out
• Why do the man's hairs repel each other?

  They are all positively charged
• What can static electricity cause under certain conditions?

  A spark, which can be dangerous
• Why is grounding important during aircraft refueling?

  It prevents charge buildup and sparks
• What do both the refueling truck and airplane need to prevent sparks?

  They need to be earthed
• What will the next video cover?

  Static electricity and electric fields
• Where can you find questions on electricity?

  In the vision workbook
• What is the relationship between static electricity and sparking?

  Static electricity can lead to sparking
• What happens to the charge of the cloth after rubbing?

  It becomes negatively charged
• What happens to the charge of the plastic after rubbing?

  It becomes positively charged
• How does rubbing two insulators together affect their charges?

  One becomes positive, the other negative
• How does the Van de Graaff generator demonstrate static electricity?

  It shows charge buildup and transfer
• What is the role of the moving belt in the Van de Graaff generator?

  To transfer electrons to and from rollers
• What happens to the charge of the man holding the generator?

  He acquires a positive charge
• What is the effect of static electricity on hair?

  It causes hair to repel and stand up
• What can happen if static electricity builds up during refueling?

  It can cause a spark and explosion
• Why is it important to understand static electricity in physics?

  It helps explain charge interactions and safety
• What is the significance of grounding in preventing static electricity hazards?

  It allows charges to dissipate safely
• How does the Van de Graaff generator illustrate the concept of charge storage?

  It stores positive charge in the dome
• What is the relationship between charge and electric fields?

  Charge creates electric fields around it
• What is the effect of rubbing insulators on their electron distribution?

  It redistributes electrons, creating charge
• What is the role of the cloth in the process of charging an insulator?

  It receives electrons from the insulator
• How does static electricity relate to everyday experiences?

  It can cause shocks and attract objects
• What is the significance of the Van de Graaff generator in demonstrating static electricity?

  It visually shows charge buildup and transfer
• What happens to the charge of the plastic after rubbing with cloth?

  It becomes positively charged