Electronics Worksheet: What Is IoT
Remember (Sense, send, store, show): IoT device = an everyday thing that shares data over the internet (usually Wi-Fi and an app). Data flow: sensor → board → Wi-Fi → cloud → app (and commands back to an actuator). Readings sent = total time ÷ time between readings, in the same units.
NameDateTime takenScore ___ / 40
- 1.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
- 2.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Inside of Toys (d) Input of Tools
- 3.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the app shows it (b) the cloud stores it
- 4.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 90 readings take?
- 5.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) an app-controlled bulb
- 6.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) sensor (c) microcontroller (d) actuator
- 7.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
- 8.What does the sensor do? (a) acts on a command (b) measures the real world (c) stores data online (d) reads values, decides
- 9.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
- 10.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the sensor measures (b) the cloud stores it
- 11.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
- 12.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a plain wall switch (d) a Wi-Fi weather station
- 13.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the board reads it (c) the app shows it (d) the cloud stores it
- 14.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
- 15.What does the Wi-Fi link do? (a) reads values, decides (b) measures the real world (c) carries the data (d) shows data to you
- 16.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a pencil sharpener (d) a Wi-Fi weather station
- 17.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
- 18.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a Wi-Fi weather station (d) an app-controlled bulb
- 19.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a smart energy meter (d) a battery torch
- 20.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
- 21.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
- 22.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
- 23.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
- 24.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
- 25.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a paper calendar (c) a battery torch (d) a wind-up clock
- 26.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) sensor (c) microcontroller (d) actuator
- 27.Which of these is not an IoT device? (a) a plain table fan (b) a smart energy meter (c) a Wi-Fi smart plug (d) a fitness band with app
- 28.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the sensor measures
- 29.🔍 Which is the odd one out? (a) a wind-up clock (b) a smart energy meter (c) a paper calendar (d) a battery torch
- 30.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
- 31.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
- 32.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) a battery torch (d) a fitness band with app
- 33.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a wind-up clock (d) a Wi-Fi doorbell camera
- 34.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a paper calendar (d) a plain table fan
- 35.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
- 36.What does the actuator do? (a) acts on a command (b) carries the data (c) reads values, decides (d) measures the real world
- 37.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
- 38.What does the microcontroller do? (a) carries the data (b) reads values, decides (c) acts on a command (d) measures the real world
- 39.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
- 40.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
Answer key
- not an IoT device
- Internet of Things
- the cloud stores it
- 2250
- a pencil sharpener
- Wi-Fi
- the board reads it
- measures the real world
- an IoT device
- the sensor measures
- 3
- a plain wall switch
- the cloud stores it
- an IoT device
- carries the data
- a pencil sharpener
- an IoT device
- a wind-up clock
- a smart energy meter
- 2
- 4
- an IoT device
- lights on from an app
- 48
- a Wi-Fi weather station
- sensor
- a plain table fan
- the app shows it
- a smart energy meter
- an IoT device
- 10
- a fitness band with app
- a wind-up clock
- a Wi-Fi smart plug
- not an IoT device
- acts on a command
- 2200
- reads values, decides
- an IoT device
- 30
Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids