Basic Terms
What is electric current?
The flow of electric charge.
What is a series circuit?
A circuit with only one path for the current to flow.
What causes static electricity?
A build up of electric charge on the surface of an object.
What does a fuse do?
Breaks the circuit if the current is too high.
Why do we use parallel circuits in home?
So each device gets full voltage and can work independently.
What is voltage?
The potential difference that drives current.
What happens to brightness if more bulbs are added to a series circuit?
Bulbs become dimmer.
What type of charge do electrons carry?
Negative charge.
Name one electrical safety rule?
Never use wet hands with electrical devices.
If you double the resistance but keep voltage the same,what happens to the current?
It decreases.
What is current measured in?
Amps
What is a parallel circuit?
A circuit with multiple paths for current.
What happens when two objects with the same charge are brought together?
They repel eachother.
What is a grounding?
Connecting electrical devices to Earth to prevent shock.
Explain how insulation protects you from electric shock.
It prevents current from reaching your body.
What is resistance?
The opposition to the flow of current.
What happens to the total resistance in a parallel circuit?
The total resistance decreases because the current has more paths to flow though.
What is a common example of static electricity in real life?
Getting a shock after walking on carpet.
Hair standing up after taking off hat.
What is a circuit breaker?
A safety device that stops current when its too high.
Why do metals conduct electricity well?
Because electrons can move freely in them.
What is static electricity?
A buildup of charges on an object.
In a parallel circuit, what happens if one bilb goes out?
The others stay on.
What type of materials prevents static charges from flowing?
An insulator,like rubber or plastic.
Why is water dangerous near electricity?
Because it conducts electricity and increases shock risk.
Why are thick wires better for high current?
Less resistance,so less heat and safercurrent flow.