Basic terms
What is the flow of electric charge called?
Current
What kind of circuit has only one path for current?
Series Circuit
What powers a circuit in most classrooms?
A battery or power supply
What should you never touch with wet hands?
Electrical outlets
Why do parallel circuits work better in homes?
One device doesn’t turn off others
What is the unit of electric current?
Amperes (Amps)
What kind of circuit has multiple paths for current?
Parallel Circuit
What happens to the current if voltage increases?
It increases
What material is a good insulator?
Rubber or plastic
What would happen if we used no insulators?
Risk of shock and fires
What is the opposition to current called?
Resistance
What happens if one bulb goes out in a series circuit?
The whole Circuit stops working
What tool measures current?
Ammeter
What device protects circuits from too much current?
Fuse or Circuit Breaker
Why does your phone need a charger with the right voltage?
Too much or too little voltage can damage it
What is the unit for Electrical Resistance?
Ohm (Ω)
What happens one bulb goes out in a parallel circuit?
The other bulb stays on
What tool measures voltage?
Voltmeter
Why are metal wires covered with plastic?
To prevent electric shock
Why are birds safe sitting on wires?
They don’t complete a circuit
What do we call the push that moves current through a circuit?
Voltage
What tool do we use to draw circuits?
Circuit diagram
What law says V = I × R?
Ohm’s Law
Why is static electricity dangerous around gas?
It can cause sparks and fires
How can renewable energy sources reduce electricity problems?
Less pollution, more sustainable energy