Circuit Symbols and Components
Conductors and Insulators
Current Flow
Series and Parallel Circuits
Ohm’s Law and Charge
100
This circuit component is represented by two parallel lines of unequal length and provides electrical energy to a circuit.
What is a cell?
100
Copper and aluminium belong to this group of materials because they allow electric current to pass through easily.
What are conductors?
100
If a switch is open, current will do this.
What is stop flowing?
100
In this type of circuit, current has only one path to follow.
What is a series circuit?
100
The equation that relates voltage, current, and resistance.
What is V = IR?
200
This component is represented by a circle with a cross inside and converts electrical energy into light.
What is a bulb (lamp)?
200
These materials resist the flow of electric charge.
What are insulators?
200
Conventional current flows in this direction:
What is positive to negative?
200
In this type of circuit, current has more than one path to follow.
What is a parallel circuit?
200
The unit of current.
What is the ampere (A)?
300
This circuit component can stop or allow current to flow when opened or closed.
What is a switch?
300
The plastic coating around electrical wires serves this purpose.
What is insulation to prevent electric shocks?
300
According to this theory, current flows from the negative to the positive terminal.
What is electron flow
300
If one bulb is removed and all the other bulbs go out, the circuit is probably this type.
What is a series circuit?
300
This is the voltage in a circuit with a current of 2 A and a resistance of 6 Ω.
What is 12 V?
(V = IR = 2 × 6)
400
This component is designed to protect circuits by melting when excessive current flows.
What is a fuse?
400
This property makes metals useful for electrical wiring.
What is good electrical conductivity?
400
This term describes the rate of flow of electric charge through a circuit.
What is electric current?
400
Homes are usually wired using this type of circuit so appliances can operate independently.
What is a parallel circuit?
400
This equation is used to calculate electric charge by relating it to electric current and time.
What is Q = It?
500
This device measures electric current and is connected in series.
What is an ammeter?
500
If a plastic ruler is placed in a circuit, it would act as this type of material and perform this action
What acts as an insulator and does not allow current to flow through the circuit?
500
Conventional current flows toward this terminal of a battery.
What is the negative terminal?
500
A circuit with three branches connected across the same battery is this type of circuit.
What is a parallel circuit?
500
The charge in a circuit with a resistor that has a resistance of 10 Ω and a current of 0.5 A flowing through it, which operates for 60 s.
What is 30 Coulombs?
V = IR = 10 × 0.5 = 5 V; Q = It = 0.5 × 60 = 30 C)