Basics of Electricity
What is the flow of electric charge called?
Current
What is the purpose of a switch in a circuit?
To open and close the circuit, allowing or stopping the flow of electricity.
When a light bulb is turned on, electrical energy is changed into what kind of energy?
Light and heat energy
You should never touch electrical appliances with wet hands.
True
What tool do you use to measure voltage in a circuit?
Voltmeter
What is the name of the device that powers a flashlight?
Battery
What component lights up when current flows through it?
Light Emitting Diode (LED) or Light Bulb
What type of energy does a battery store before it is used in a circuit?
Chemical energy
What should you do if you see a frayed (damaged) electrical cord?
Avoid using it and tell an adult or teacher.
What is the unit of measurement for voltage?
Volt
What is the unit used to measure electric current?
Ampere (Amp)
What do you call the material that allows electricity to flow through it easily?
Conductor
What type of circuit has only one path for electricity to flow?
Series Circuit
What happens if too much electricity flows through a circuit without a safety device?
The circuit can overheat or cause a fire.
What is the name of the device that measures how much current flows through a circuit?
Ammeter
What type of circuit has no gaps and allows electricity to flow through it?
Closed Circuit
What happens to a circuit when the switch is open?
The circuit is broken, and electricity cannot flow through it.
If a fan runs on electricity, what type of energy is the electricity transformed into?
Mechanical (motion) energy
What should you do if an electrical appliance falls into water?
Unplug it immediately if safe to do so, and do not touch it until it is dry.
What does a multimeter measure?
It can measure voltage, current, and resistance.
What happens to a circuit if you add more batteries in a row?
The voltage increases, which can make components like bulbs brighter.
What part of a circuit is used to hold electrical energy temporarily, like a small storage container?
Capacitor (Note: This is an introductory mention; students may have only a basic understanding.)
What happens to the brightness of two bulbs connected in series?
They are dimmer compared to if there was only one bulb because they share the electrical energy.
Why is it dangerous to use electronics near water?
Water is a conductor, and it can lead to electric shock.
True or False: Higher voltage always means more current will flow through a circuit.
False (It depends on the resistance in the circuit as well.)