4. Electricity Flashcards
What is an insulator?
An object with high resistance which does not allow electrons to pass through.
What is a conductor?
An object with low resistance which allow electrons to pass through.
Give an example of an insulator.
plastic, stone, glass, wood, rubber, cloth.
Give an example of a conductor.
Metal, silver, iron, bronze, brass, gold.
Is wood an insulator? and does it have a low resistance?
Yes and no.
Is Aluminium an insulator? and does it have a low resistance?
No and Yes
Define Static electricity.
Current electricity is when electrons are flowing through a conductor in a closed circuit.
Define Current electricity.
Static electricity is when electrons get collected on the surface of an object (usually an insulator)
What is the difference between Current electricity and Static electricity?
Current electricity is when the electrons are moving while static electricity is when the electrons are not moving.
What does this symbol represent?
-I-|-
Battery/cell
What does this symbol represent?
-⦻-
Lightbulb
What does this symbol represent?
–Ⓐ–
Ammeter
What does this symbol represent?
–Ⓥ–
Voltmeter
What does this symbol represent?
.__./
Switch (opened)
