Electric Fields & Static Electricity (AQA GCSE Physics): Flashcards
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Practise the cards
13 cards from this deck
What causes static electricity?
What causes static electricity?
Build-up of charges not free to move
What moves when insulators rubbed together
What moves when insulators rubbed together
Electrons
Charge of material that loses electrons
Charge of material that loses electrons
Positive
Charge of material that gains electrons
Charge of material that gains electrons
Negative
Polythene rod rubbed with cloth - charge on rod
Polythene rod rubbed with cloth - charge on rod
Negative (gains electrons from cloth)
Interaction between opposite charges
Interaction between opposite charges
Attract (electrostatic attraction)
Type of force: electrostatic attraction
Type of force: electrostatic attraction
Non-contact force
Interaction between like charges
Interaction between like charges
Repel (electrostatic repulsion)
What is a spark?
What is a spark?
Electrons jumping across a gap
Definition: earthed conductor
Definition: earthed conductor
Material connected to the Earth
What creates electric fields?
What creates electric fields?
Electrically charged objects
Electric field strength vs distance from charged object
Electric field strength vs distance from charged object
Increases closer to object
Direction of electric field lines
Direction of electric field lines
From positive to negative charges