Physics1 7J Electricity Flashcards
Name the piece of equipment that measures how much current is flowing around a circuit.
The piece of equipment that measures how much current is flowing around a circuit is called an ammeter
What is the unit for measuring current?
Current is measured in Amperes, or Amps (A) for short.
Two or more cells used together.
battery
A source of electricity with a low ‘energy’ (low voltage). Cells push electrons round a circuit.
cell
What do you call the flow of electricity around a circuit.
The flow of electricity around a circuit is called current.
What’s the name of the thin piece of wire inside a light bulb that glows when the bulb is on.
The thin piece of wire inside a light bulb that glows when the bulb is on is called the filament.
What’s the name of the tiny chatged particles that flow around a circuit?
The name of the tiny chatged particles that flow around a circuit is electrons.
What’s this kind of circuit called?
There is more than one way thyat the current can flow.
This kind of circuit is called a parallel circuit.
What’s this kind of circuit called?
There is only one loop of wire, and therefore only one way that the current can flow.
his kind of circuit is called a series circuit
If something has electrical resistance, what does this mean?
Resistance means the way some things try to stop electricity flowing through them. They resist the current.
It is difficult to floe though something with high resistance.
What do you call a component whose resistance can be changed?
A component whose resistance can be changed is called a variable resistor. You can vary the resistance.
What’s the word that describes the energy transferred by the charges?
The word that describes the energy transferred by the charges is voltage.
Energy can be goiven to the charges by a battery, or lost by the charges in a bulb.
What’s the piece of equipment that measures how much energy is being transferred by the charges?
The piece of equipment that measures how much energy is being transferred by the charges? voltmeter.
What’s the name of the green and yellow wire in a cable or plug. It is there for safety.
The green and yellow wire in a cable or plug is called the earth wire
What’s the name of the piece of wire that melts if too much electricity flows through it.
The device found in a plug which will melt, and turn off the circuit, is called a fuse