Input Devices Flashcards
What do all input devices do
Change other forms of energy into electrical energy
Name all 5 common input devices
Microphone Thermocouple Solar cell Thermistor LDR
MTSTL
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What does a microphone convert
Sound to electrical energy
What device does the energy change heat to electrical energy
Thermocouple
What does a solar cell use to change to electrical energy
Heat and light
What energy change does a thermistor carry out
Heat to electrical energy
What does an LDR convert light to
Electrical energy
What are input devices used as in electronic circuits
Sensors
How does an electronic system activate using a sensor
Sensor causes an electrical property of sensor to change
State how a microphone works
Changes sound to electrical waves
Sound waves near a microphone cause electrical waves
This can be the input to a switch on a voice operated control system
What consists of 2 different metals joined at one end and separated at the other
Thermocouple
In a thermocouple are the wires insulated or not
Insulated
In a thermocouple detects a increase in temperature what happens
Voltage increases
Do thermocouple require batteries
Nope they get all their energy from the surroundings
What happens when solar cells are exposed to light
Generate and support electric current
