Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 237 · 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.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
2. 2.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
4. 4.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
5. 5.Which of these is not an IoT device? (a) a fitness band with app (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
6. 6.What does the cloud server do? (a) measures the real world (b) acts on a command (c) stores data online (d) reads values, decides
7. 7.What does the Wi-Fi link do? (a) shows data to you (b) carries the data (c) stores data online (d) acts on a command
8. 8.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
9. 9.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a battery torch
10. 10.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a battery torch (d) a Wi-Fi doorbell camera
11. 11.🔢 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
12. 12.🔍 Which is the odd one out? (a) a smart energy meter (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a fitness band with app
13. 13.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the cloud stores it (d) the sensor measures
14. 14.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by shouting (d) by post
15. 15.🌐 In an IoT system, which part measures the real world? (a) sensor (b) phone app (c) microcontroller (d) Wi-Fi
16. 16.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a smart energy meter (d) a plain wall switch
17. 17.🔍 Which is the odd one out? (a) a wind-up clock (b) a smart energy meter (c) an app-controlled bulb (d) a Wi-Fi smart plug
18. 18.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the cloud stores it
21. 21.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
22. 22.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
23. 23.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Input of Tools (d) Internet of Talk
24. 24.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
26. 26.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a wind-up clock (c) a paper calendar (d) a battery torch
27. 27.What does the actuator do? (a) acts on a command (b) shows data to you (c) measures the real world (d) reads values, decides
28. 28.🌐 In an IoT system, which part acts on a command? (a) phone app (b) Wi-Fi (c) actuator (d) microcontroller
29. 29.🔍 Which is the odd one out? (a) a plain table fan (b) a battery torch (c) a smart energy meter (d) a plain wall switch
30. 30.What does the microcontroller do? (a) carries the data (b) shows data to you (c) reads values, decides (d) stores data online
31. 31.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a Wi-Fi weather station (d) a battery torch
32. 32.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi weather station (c) a plain table fan (d) a plain wall switch
33. 33.What does the sensor do? (a) carries the data (b) reads values, decides (c) stores data online (d) measures the real world
34. 34.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
35. 35.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) a Wi-Fi weather station (d) a pencil sharpener
36. 36.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
37. 37.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a plain wall switch (d) a smart energy meter
38. 38.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
40. 40.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device

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