Look at the component in the photo. Which component is it, and what is its role in a circuit?

The photo shows one circuit component. What is it, and is it a sensor or an actuator?

Identify the pictured component and its circuit role.

What is the pictured part, and does it sense or act?

Which component is shown, and what role does it have in an embedded system?

What does the pictured component do in a circuit?

Once wired into a circuit, what does the component in the photo do?

What does the pictured component do when the controller activates it?

A temperature sensor is connected to a microcontroller in an incubator. Which classification and signal direction are correct?

In a robotic car, a DC motor spins the wheels after receiving a controller command. What is the motor?

A fitness tracker uses an accelerometer. How should this component be classified?

A controller opens a water line by energizing a solenoid valve. Which statement is accurate?

An ultrasonic distance sensor is mounted at the front of a robot. What is its role?

An LED on a device turns on when its microcontroller sends an output signal. Which description fits the LED?

A weather station includes a humidity sensor. What quantity does this sensor measure?

A knob connected to a potentiometer is turned. What does the potentiometer measure for the controller?

What does a light sensor measure in an automatic night-light system?

Before a drone adjusts its flight, its pressure sensor reports a reading. What physical quantity is being measured?

A phone changes its screen orientation when an accelerometer detects movement. What does the accelerometer measure?

A garden light must turn on when daylight becomes dim, even though sunset changes through the year. Which component should provide the controller's input?

A museum display should play a greeting only when a visitor walks nearby. Which component is best for detecting the visitor's movement?

A robot must point a small arm to 30°, then later to 120°. What component should the controller use?

A device needs to detect a clap before its microcontroller starts a timer. Which component should be used?

A food-storage controller should start a cooling fan when the enclosure becomes too warm. What sensor does it need to read the condition?

A microcontroller pin cannot directly power a large fan, but it must switch the fan's separate power circuit on and off. Which component should it control?

An automatic soap dispenser detects a hand, the microcontroller decides to dispense soap, and a pump pushes soap out. Which part is the actuator?

A smart plant system reads a soil-moisture probe, compares the reading with a threshold, and runs a pump if needed. Which part is the input?

In a thermostat system, a temperature sensor sends a reading, firmware decides whether heating is needed, and a furnace starts. What is the processing part?

A garage-door system receives a button press, a controller checks safety conditions, and a motor raises the door. Which item is the output actuator?

A bike light system uses an accelerometer to detect hard braking, a controller interprets the reading, and LEDs flash. Where does the accelerometer belong in the input-process-output chain?