Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 660 · 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.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) a plain wall switch (d) a wind-up clock
2. 2.What does the cloud server do? (a) carries the data (b) acts on a command (c) shows data to you (d) stores data online
3. 3.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) the cloud stores it (b) it is sent by Wi-Fi
4. 4.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
5. 5.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
6. 6.Which of these is not an IoT device? (a) a smart energy meter (b) a pencil sharpener (c) an app-controlled bulb (d) a Wi-Fi smart plug
7. 7.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
8. 8.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
9. 9.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
10. 10.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a plain wall switch (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
11. 11.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) microcontroller (c) Wi-Fi (d) sensor
12. 12.🌐 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
13. 13.🌐 In an IoT system, which part stores data online? (a) sensor (b) phone app (c) cloud server (d) microcontroller
14. 14.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a smart energy meter (c) a wind-up clock (d) a Wi-Fi smart plug
15. 15.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 190 readings take?
16. 16.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
18. 18.What does the phone app do? (a) reads values, decides (b) stores data online (c) carries the data (d) shows data to you
19. 19.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi smart plug (c) a wind-up clock (d) a pencil sharpener
20. 20.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
21. 21.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a battery torch
22. 22.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 80 readings take?
23. 23.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) it is sent by Wi-Fi (b) the cloud stores it
25. 25.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?
26. 26.🔢 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
27. 27.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 110 readings take?
28. 28.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a pencil sharpener (d) a Wi-Fi doorbell camera
29. 29.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
30. 30.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Input of Tools (d) Internet of Talk
31. 31.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a paper calendar (d) a Wi-Fi weather station
32. 32.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
33. 33.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a paper calendar
34. 34.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
35. 35.🔍 Which is the odd one out? (a) a wind-up clock (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
36. 36.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) cloud server (c) actuator (d) sensor
37. 37.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a smart energy meter
38. 38.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
39. 39.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
40. 40.What does the Wi-Fi link do? (a) carries the data (b) measures the real world (c) reads values, decides (d) shows data to you

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