
Motion Sensor Light MCQs
Quiz
•
Other
•
6th - 8th Grade
•
Practice Problem
•
Hard
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30 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What is the primary objective of this project?
To build a temperature-controlled fan.
To automatically turn on a light via relay when motion is detected.
To create a sound-activated switch.
To measure the intensity of ambient light.
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which component is described as a "microcontroller board with Wi-Fi and GPIO pins"?
IR Motion Sensor
Relay Module
ESP32 Dev Board
Breadboard
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What is the function of the IR Motion Sensor in this project?
It controls high-voltage devices.
It indicates when motion is detected visually.
It detects human motion using infrared radiation.
It provides power to the circuit.
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The Relay Module is used to control what kind of devices?
Low-voltage DC motors.
External high-voltage devices like AC lights.
Other microcontrollers.
USB peripherals.
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Why is a 220Ω resistor included in the component list?
For controlling the relay.
For detecting motion.
For LED current limiting.
For increasing the Wi-Fi signal.
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What are the two stated purposes of the USB Cable?
To power the relay and connect to the internet.
To power the ESP32 and upload code.
To charge the LED and transfer data.
To connect the breadboard and the sensor.
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
An IR sensor is an electronic device that emits light to sense objects and can also measure an object's what?
Mass
Color
Heat
Speed
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