Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 10 · 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 30 seconds. How many readings does it send in 4 minutes?
2. 2.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
3. 3.What does the microcontroller do? (a) stores data online (b) measures the real world (c) acts on a command (d) reads values, decides
4. 4.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a plain table fan
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 wind-up clock
6. 6.🌐 In an IoT system, which part measures the real world? (a) sensor (b) actuator (c) Wi-Fi (d) cloud server
7. 7.🔢 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 cloud stores it (c) the sensor measures (d) the app shows it
8. 8.What does the phone app do? (a) carries the data (b) shows data to you (c) stores data online (d) measures the real world
9. 9.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a plain wall switch (d) an app-controlled bulb
10. 10.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
11. 11.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
12. 12.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
13. 13.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 110 readings take?
15. 15.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
16. 16.🔍 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 weather station
17. 17.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
18. 18.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🌐 In an IoT system, which part acts on a command? (a) sensor (b) microcontroller (c) cloud server (d) actuator
20. 20.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) by shouting (d) over Wi-Fi
23. 23.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
24. 24.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
25. 25.What does the Wi-Fi link do? (a) carries the data (b) shows data to you (c) stores data online (d) measures the real world
26. 26.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a plain wall switch
28. 28.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the app shows it (b) the cloud stores it
31. 31.Which of these is not an IoT device? (a) a plain table fan (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
32. 32.🔍 Which is the odd one out? (a) a pencil sharpener (b) an app-controlled bulb (c) a plain table fan (d) a wind-up clock
33. 33.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
34. 34.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
36. 36.Which of these is not an IoT device? (a) a wind-up clock (b) a fitness band with app (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
37. 37.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
38. 38.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a Wi-Fi weather station (d) a battery torch
39. 39.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
40. 40.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?

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