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What does this symbolise?
Cell
What does this symbolise?
Battery
What does this symbolise?
Open switch
What does this symbolise?
Closed switch
What does this symbolise?
Bulb/lamp
What does this symbolise?
Fuse
What does this symbolise?
Diode
What does this symbolise?
Resistor
What does this symbolise?
Variable resistor
What does this symbolise?
Ammeter
What does this symbolise?
Voltmeter
What does this symbolise?
Light Emitting Diode/ LED
What does this symbolise?
Light Dependent Resistor
What does this symbolise?
Thermistor
What is current?
Rate of flow of electrical charge
What is current measured in?
Amperes/ Amps A
What is voltage
Potential difference- a force that pushes the charge through the circuit
What is voltage measured in?
Volts V
What is resistance?
Anything that slows the current down
What is resistance measured in?
Ohms Ω
What is the symbol for current
The letter I
What is charge measured in?
Coulombs
What does this symbolise?
Motor
What is energy measured in?
Joules
What is the symbol for voltage?
V
What happens to resistance (usually) when temperature increases?
Increases
When resistance increases, what happens to current?
Decreases
When a current flows through a resistor, what happens to its temperature?
Heats up
What happens to the resistance of a thermistor as temperature increases?
Decreases
What kind of graph is this?
Wire/ resistor at fixed temperature
What kind of graph is this?
Filament lamp
What kind of graph is this?
Diode
What kind of graph is this?
LDR
What kind of graph is this?
Thermistor
What happens to LDR resistance in bright light?
Decreases
What happens to LDR resistance in darkness?
Increases
What is thermistor dependent on?
Temperature
What happens to thermistor resistance if the temperature is cool?
Increases
What happens to thermistor resistance if the temperature is hot?
Decreases
What happens to current in a parallel circuit?
It is distributed across branches
What happens in a junction of a parallel circuit?
Current splits or rejoins
What happens to efficiency usually when a component is heated?
Decreases
What are the four types of resistors?
Fixed resistor
Variable resistor
Thermistor
Light Dependent Resistor
What is the symbol for Charge
Q
What is charge measured in
coulombs C
What does this symbolise
Double insulation
What colour is the live wire
Brown
What colour is the neutral wire
Blue
What colour is the earth wire
yellow/ green
Note 
Flashcard (85)