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Physics
P2 electricity
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Created by
Fergie Dusk
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Cards (23)
What happens when two insulators are rubbed together?
Electrons
are
transferred
between the
materials
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What charge does a material acquire when it loses electrons?
The material becomes
positively charged
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What charge does a material acquire when it gains electrons?
The material becomes
negatively charged
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How are the charges of two insulators after rubbing related?
They are
equal
but
opposite
in charge
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How do opposite charges interact?
They
attract
each other
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What happens when a negatively charged object is near a positively charged object?
They
attract
each other
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How do like charges interact?
They
repel
each other
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What occurs when two positively charged objects are near each other?
They
repel
each other
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Why do we feel an electric shock?
Due to discharge of
electrostatic charge
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What is meant by 'earthing' an object?
Connecting it to the
ground
to discharge
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What happens during an electric shock?
Electrons
flow to even out the
charge
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Why does lightning occur?
Due to
electrostatic
charge
buildup in clouds
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What happens when clouds discharge their electrostatic charge?
It results in
lightning
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Why does a charged balloon stick to a wall?
It attracts the wall's
negative
charges
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What occurs to the charges in the wall when a charged balloon is near?
Positive charges are
repelled
, creating
attraction
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How can a comb pick up paper pieces?
The comb
attracts
oppositely
charged
paper particles
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What happens when a comb is rubbed against hair?
The comb gains an
electrostatic
charge
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How does earthing remove excess charge?
It provides a
low resistance
path for
electrons
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How is electrostatic charge used in paint spraying?
It
attracts
paint
to the object being
painted
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What is the benefit of electrostatic charge in paint spray?
It
reduces
paint
waste
by
spreading
out
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How does static electricity pose a danger when fueling cars?
It can cause
sparks
that
ignite
fuel
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What causes static charge buildup during fueling?
Friction
between pipes and fuel flow
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How is the danger of static electricity during fueling resolved?
By
earthing
the vehicle and pump
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