Electricity Flashcards
(30 cards)
What is electricity?
The flow of charged particles called electrons.
Why do we need electricity?
It powers lighting, appliances, transport, and communication systems.
What makes a metal a good electrical conductor?
Electrons are free to move and carry charge.
Name a material which is an electrical insulator.
Wood, plastic, or rubber.`
What is static electricity?
The build-up of electrical charge on an object.
What is an electric current?
The continuous flow of electric charges through a material.
What is the unit of measurement for current?
Amperes (A).
What is potential difference?
The difference in potential energy between two locations.
What is voltage?
Another term for potential difference, measured in volts (V).
What is a circuit?
A path through which electricity can flow.
What are the three main parts of a circuit?
Energy source, load, and conductor.
What is the function of a switch in a circuit?
To control the flow of current by opening or closing the circuit.
What is a series circuit?
A circuit that provides only one path for the current.
What happens in a series circuit if one component fails?
The entire circuit stops working.
What is a parallel circuit?
A circuit that provides multiple paths for current to flow.
What happens in a parallel circuit if one component fails?
Other parts continue to work.
Which circuit type keeps bulb brightness unaffected when others are disconnected?
Parallel circuit.
What makes a good conductor?
A material that allows electrical energy to flow easily.
What is a conductor?
A material that allows electric current to pass through easily, usually metals.
What is an insulator?
A material that resists the flow of electric current, like plastic or rubber.
What is a Cell?
A source of current electricity.
What is a Battery?
Two or more cells joined together. Provides electrical energy.
What is a Light Bulb used for in a circuit?
Converts electrical energy into light and thermal energy.
What does a Motor do in a circuit?
Converts electrical energy into mechanical energy.
