Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 684 · 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 of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a wind-up clock (d) an app-controlled bulb
2. 2.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
3. 3.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the board reads it (b) the cloud stores it
4. 4.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
5. 5.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
6. 6.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Internet of Things (d) Inside of Toys
7. 7.Which of these is an IoT device? (a) a battery torch (b) an app-controlled bulb (c) a plain table fan (d) a wind-up clock
8. 8.What does the Wi-Fi link do? (a) reads values, decides (b) carries the data (c) stores data online (d) shows data to you
9. 9.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
11. 11.🌐 In an IoT system, which part measures the real world? (a) actuator (b) cloud server (c) sensor (d) phone app
12. 12.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) cloud server (c) phone app (d) Wi-Fi
13. 13.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) through a candle (d) by shouting
14. 14.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
15. 15.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a pencil sharpener (d) a Wi-Fi smart plug
16. 16.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a paper calendar
17. 17.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a plain table fan (d) a battery torch
18. 18.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
19. 19.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
21. 21.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) Wi-Fi (c) sensor (d) actuator
22. 22.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
23. 23.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the board reads it
24. 24.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
25. 25.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
26. 26.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
27. 27.Which of these is not an IoT device? (a) a paper calendar (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a fitness band with app
28. 28.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
29. 29.What does the actuator do? (a) shows data to you (b) stores data online (c) acts on a command (d) reads values, decides
30. 30.🏠 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
31. 31.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a battery torch (d) a Wi-Fi weather station
32. 32.🔍 Which is the odd one out? (a) a wind-up clock (b) a fitness band with app (c) an app-controlled bulb (d) a Wi-Fi smart plug
33. 33.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the board reads it
35. 35.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a fitness band with app (d) a wind-up clock
37. 37.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
38. 38.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
39. 39.🌐 In an IoT system, which part shows data to you? (a) phone app (b) cloud server (c) microcontroller (d) sensor
40. 40.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device

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