What type of materials can become electrically charge?
Insulating materials.
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How can you generate static electricity?
By causing rubbing / friction between two objects.
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Give three example of a material that can be electrically charged.
Balloon, synthetic clothing, dusting brushes.
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How can a charged object be discharged?
By earthing it.
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What is earthing?
When a object discharges, electrons are transferred from the charged object to the earth.
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Give two example where static electricity dangerous.
Flour mills and petrochemical factories.
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Why is it dangerous there?
Flour mills and petrochemical factories have atmospheres that can contain extremely flammable gases (or vapors), or high concentrations of oxygen. A discharge of static electricity (i.e. a spark) can lead to an explosion.
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Other cards in this set
Card 2
Front
How can you generate static electricity?
Back
By causing rubbing / friction between two objects.
Card 3
Front
Give three example of a material that can be electrically charged.
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