Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 801 · 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 smart energy meter (b) a Wi-Fi weather station (c) a paper calendar (d) a Wi-Fi smart plug
2. 2.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
4. 4.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
5. 5.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
6. 6.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the board reads it (c) the sensor measures (d) the app shows it
7. 7.What does the microcontroller do? (a) acts on a command (b) shows data to you (c) carries the data (d) reads values, decides
8. 8.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a smart energy meter (d) a wind-up clock
9. 9.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) over Wi-Fi (d) by post
10. 10.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a paper calendar (d) a pencil sharpener
12. 12.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) actuator (c) microcontroller (d) sensor
13. 13.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
14. 14.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a Wi-Fi weather station (d) a plain wall switch
15. 15.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
16. 16.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
17. 17.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a pencil sharpener (d) a Wi-Fi smart plug
18. 18.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) actuator (c) phone app (d) microcontroller
19. 19.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a wind-up clock
20. 20.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
21. 21.What does the Wi-Fi link do? (a) shows data to you (b) measures the real world (c) carries the data (d) acts on a command
22. 22.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) a plain table fan (d) a Wi-Fi doorbell camera
23. 23.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
24. 24.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
25. 25.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Input of Tools (d) Internet of Talk
26. 26.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
27. 27.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a paper calendar (d) an app-controlled bulb
28. 28.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
29. 29.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) an app-controlled bulb (d) a plain table fan
30. 30.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
32. 32.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) sensor (c) Wi-Fi (d) actuator
33. 33.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
34. 34.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the sensor measures (b) the cloud stores it
36. 36.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🔍 Which is the odd one out? (a) a battery torch (b) an app-controlled bulb (c) a paper calendar (d) a plain table fan
38. 38.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the board reads it (c) the cloud stores it (d) the app shows it
39. 39.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
40. 40.Which of these is not an IoT device? (a) a smart energy meter (b) a battery torch (c) a Wi-Fi weather station (d) a fitness band with app

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