Physics Test Yr10

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what's a diode?
a diode is a component that only allows current to flow in 1 direction
1 of 5
what is an LED (light emitting diode)?
an LED is known and used as an indicator. they only allow current to flow through it in a forward direction
2 of 5
what is the rule of LDR's (light dependent resistors)?
the resistance decreases if the light intensity increases and the resistance increases if the light intensity decreases
3 of 5
what is a thermistor?
a thermistor is a temperature dependant resistor. the resistance decreases as the temperature increases.
4 of 5
'a filament lamp follows ohm's law' - true or false?
false- it is non-ohmic as the temperature doesn't remain constant
5 of 5

Other cards in this set

Card 2

Front

what is an LED (light emitting diode)?

Back

an LED is known and used as an indicator. they only allow current to flow through it in a forward direction

Card 3

Front

what is the rule of LDR's (light dependent resistors)?

Back

Preview of the front of card 3

Card 4

Front

what is a thermistor?

Back

Preview of the front of card 4

Card 5

Front

'a filament lamp follows ohm's law' - true or false?

Back

Preview of the front of card 5

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