Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 861 · 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.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
2. 2.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
3. 3.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) actuator (c) cloud server (d) Wi-Fi
4. 4.What does the cloud server do? (a) stores data online (b) carries the data (c) reads values, decides (d) measures the real world
5. 5.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
6. 6.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
7. 7.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
8. 8.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
9. 9.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
10. 10.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a plain wall switch (d) an app-controlled bulb
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the cloud stores it (c) the app shows it (d) it is sent by Wi-Fi
12. 12.What does the Wi-Fi link do? (a) stores data online (b) reads values, decides (c) carries the data (d) measures the real world
13. 13.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a battery torch
14. 14.🏠 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
15. 15.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
16. 16.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
17. 17.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a paper calendar (d) a Wi-Fi smart plug
18. 18.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
19. 19.What does the actuator do? (a) acts on a command (b) reads values, decides (c) carries the data (d) measures the real world
20. 20.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) microcontroller (c) sensor (d) Wi-Fi
21. 21.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
22. 22.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a plain table fan
23. 23.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 140 readings take?
24. 24.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
25. 25.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
26. 26.🌐 In an IoT system, which part measures the real world? (a) actuator (b) Wi-Fi (c) phone app (d) sensor
27. 27.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
28. 28.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a Wi-Fi weather station (d) a plain wall switch
29. 29.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
30. 30.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a Wi-Fi smart plug (d) a plain table fan
31. 31.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
32. 32.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
33. 33.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi weather station (c) a wind-up clock (d) an app-controlled bulb
34. 34.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) by post (d) through a candle
36. 36.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
37. 37.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
38. 38.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a fitness band with app (d) a battery torch
39. 39.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the app shows it (c) the sensor measures (d) the cloud stores it
40. 40.What does the microcontroller do? (a) acts on a command (b) shows data to you (c) measures the real world (d) reads values, decides

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