Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 208 · 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.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
2. 2.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
3. 3.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a smart energy meter (d) a pencil sharpener
4. 4.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) the app shows it (b) it is sent by Wi-Fi
5. 5.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a Wi-Fi weather station (d) a plain wall switch
6. 6.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a battery torch
7. 7.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
8. 8.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a pencil sharpener
9. 9.Which of these is an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a pencil sharpener (d) a battery torch
10. 10.What does the microcontroller do? (a) reads values, decides (b) carries the data (c) stores data online (d) measures the real world
11. 11.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a plain wall switch
12. 12.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi weather station (c) a fitness band with app (d) an app-controlled bulb
13. 13.What does the Wi-Fi link do? (a) stores data online (b) carries the data (c) shows data to you (d) acts on a command
14. 14.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a fitness band with app
15. 15.What does the actuator do? (a) carries the data (b) reads values, decides (c) measures the real world (d) acts on a command
16. 16.What does the cloud server do? (a) acts on a command (b) shows data to you (c) carries the data (d) stores data online
17. 17.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
18. 18.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
19. 19.Which of these is not an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
20. 20.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) an app-controlled bulb (d) a pencil sharpener
21. 21.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
22. 22.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) microcontroller (c) Wi-Fi (d) sensor
23. 23.🌐 In an IoT system, which part stores data online? (a) actuator (b) microcontroller (c) cloud server (d) sensor
24. 24.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
26. 26.🌐 In an IoT system, which part carries the data? (a) cloud server (b) Wi-Fi (c) actuator (d) sensor
27. 27.🔍 Which is the odd one out? (a) a fitness band with app (b) a battery torch (c) a wind-up clock (d) a plain wall switch
28. 28.🔢 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 sensor measures (d) the app shows it
29. 29.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the sensor measures (b) the cloud stores it
30. 30.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) a hand fan (d) lights on from an app
31. 31.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a pencil sharpener
32. 32.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 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
34. 34.What does the phone app do? (a) measures the real world (b) reads values, decides (c) acts on a command (d) shows data to you
35. 35.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
36. 36.🌐 In an IoT system, which part shows data to you? (a) phone app (b) cloud server (c) Wi-Fi (d) sensor
37. 37.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
38. 38.What does the sensor do? (a) measures the real world (b) reads values, decides (c) acts on a command (d) carries the data
39. 39.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?

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