Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 472 · 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.What does the sensor do? (a) measures the real world (b) carries the data (c) acts on a command (d) reads values, decides
2. 2.🔍 Which is the odd one out? (a) a smart energy meter (b) a paper calendar (c) a plain table fan (d) a wind-up clock
3. 3.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Internet of Talk (d) Inside of Toys
4. 4.What does the phone app do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) measures the real world
5. 5.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a plain wall switch (d) a battery torch
6. 6.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
7. 7.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
8. 8.Which of these is an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a battery torch (d) a pencil sharpener
9. 9.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
10. 10.🌐 In an IoT system, which part acts on a command? (a) phone app (b) actuator (c) cloud server (d) sensor
11. 11.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) a Wi-Fi weather station (d) a battery torch
12. 12.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a fitness band with app (d) a battery torch
13. 13.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi weather station (c) a smart energy meter (d) an app-controlled bulb
14. 14.What does the microcontroller do? (a) acts on a command (b) stores data online (c) shows data to you (d) reads values, decides
15. 15.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
17. 17.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a pencil sharpener (d) a battery torch
18. 18.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by shouting (d) by post
19. 19.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
20. 20.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a plain wall switch
21. 21.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) Wi-Fi (c) sensor (d) phone app
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
23. 23.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
24. 24.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
26. 26.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the app shows it (c) the board reads it (d) the sensor measures
27. 27.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) the board reads it
28. 28.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
29. 29.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a battery torch
30. 30.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 In an IoT system, which part stores data online? (a) phone app (b) cloud server (c) Wi-Fi (d) actuator
33. 33.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi weather station (c) a plain wall switch (d) a battery torch
34. 34.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
35. 35.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a plain wall switch (d) a Wi-Fi smart plug
36. 36.What does the Wi-Fi link do? (a) carries the data (b) acts on a command (c) stores data online (d) measures the real world
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
38. 38.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
39. 39.🌐 In an IoT system, which part carries the data? (a) sensor (b) cloud server (c) microcontroller (d) Wi-Fi
40. 40.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?

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