Which component measures physical quantities such as temperature?

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Multiple Choice

Which component measures physical quantities such as temperature?

Explanation:
Sensors are used to detect and measure physical quantities such as temperature and then convert that information into signals a system can read. That makes them the component that measures physical quantities. An actuator, by contrast, changes the environment in response to a signal; a clock simply tracks time; RAM stores data. For example, a temperature sensor in a thermostat reads room temperature so the controller can decide whether to heat or cool.

Sensors are used to detect and measure physical quantities such as temperature and then convert that information into signals a system can read. That makes them the component that measures physical quantities. An actuator, by contrast, changes the environment in response to a signal; a clock simply tracks time; RAM stores data. For example, a temperature sensor in a thermostat reads room temperature so the controller can decide whether to heat or cool.

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