Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 641 · 40 questions

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.

1. 1.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
2. 2.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi smart plug (c) a wind-up clock (d) a plain wall switch
3. 3.🔢 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
4. 4.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a plain table fan (d) a paper calendar
5. 5.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
6. 6.What does the Wi-Fi link do? (a) measures the real world (b) stores data online (c) shows data to you (d) carries the data
7. 7.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a candle in a jar (d) a printed map
8. 8.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) a Wi-Fi smart plug (d) a fitness band with app
9. 9.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
10. 10.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a plain wall switch (d) an app-controlled bulb
11. 11.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a wind-up clock (d) an app-controlled bulb
12. 12.What does the cloud server do? (a) carries the data (b) shows data to you (c) stores data online (d) measures the real world
13. 13.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a fitness band with app
14. 14.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the board reads it
15. 15.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a plain wall switch (d) a paper calendar
16. 16.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
17. 17.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
18. 18.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) through a candle (d) over Wi-Fi
19. 19.What does the actuator do? (a) carries the data (b) reads values, decides (c) acts on a command (d) shows data to you
20. 20.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Input of Tools (d) Inside of Toys
21. 21.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
23. 23.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
24. 24.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a pencil sharpener (d) a smart energy meter
25. 25.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) Wi-Fi (c) microcontroller (d) sensor
26. 26.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) microcontroller (c) Wi-Fi (d) actuator
27. 27.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the app shows it (b) the board reads it
29. 29.What does the phone app do? (a) acts on a command (b) shows data to you (c) measures the real world (d) stores data online
30. 30.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
31. 31.What does the microcontroller do? (a) stores data online (b) reads values, decides (c) shows data to you (d) acts on a command
32. 32.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
33. 33.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a plain table fan (d) a Wi-Fi doorbell camera
35. 35.🌐 In an IoT system, which part stores data online? (a) sensor (b) Wi-Fi (c) cloud server (d) actuator
36. 36.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
38. 38.Which of these is not an IoT device? (a) a smart energy meter (b) an app-controlled bulb (c) a pencil sharpener (d) a Wi-Fi weather station
39. 39.🔍 Which is the odd one out? (a) a smart energy meter (b) a paper calendar (c) a Wi-Fi smart plug (d) an app-controlled bulb
40. 40.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids