Circuits

Identify these circuit symbols:

bulb throw switch voltmeter fuse ammeter battery cell resistor

push switch Light dependent resistor loudspeaker diode thermistor battery cell variable resistor

Link up these devises with the job they do:

Cell or battery

Converts electrical energy into movement Converts electrical energy into sound energy Converts chemical energy into electrical energy Resistance increases as light level decreses Resistance increases as temperature decreases

Loudspeaker

Thermistor

Light dependent resistor

Motor

Variable resistor

It has a fixed value, measured in Ohms Has a thin wire that breaks if the current is too high Measures the potential difference or the Voltage Lets electricity flow through it in one direction only Measures the current in Amperes Adjusted to alter the current in a circuit

Diode

It has a fixed value, measured in Ohms Has a thin wire that breaks if the current is too high Measures the potential difference or the Voltage Lets electricity flow through it in one direction only Measures the current in series Adjusted to alter the current in a circuit

Resistor

Fuse

Ammeter

Voltmeter

It has a fixed value, measured in Ohms Has a thin wire that breaks if the current is too high Measures the Voltage in parallel Lets electricity flow through it in one direction only Measures the current in series Adjusted to alter the current in a circuit

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