Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 592 · 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.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Inside of Toys (d) Internet of Talk
2. 2.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a plain wall switch (d) a plain table fan
3. 3.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
4. 4.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
5. 5.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
8. 8.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) Wi-Fi (c) phone app (d) cloud server
9. 9.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) lights on from an app (d) a candle in a jar
10. 10.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) the board reads it (b) it is sent by Wi-Fi
13. 13.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
14. 14.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the sensor measures
15. 15.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a paper calendar (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
16. 16.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a smart energy meter
17. 17.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a pencil sharpener (d) a Wi-Fi weather station
18. 18.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
19. 19.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a wind-up clock (d) a fitness band with app
21. 21.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) sensor (c) Wi-Fi (d) actuator
22. 22.What does the cloud server do? (a) stores data online (b) measures the real world (c) shows data to you (d) carries the data
23. 23.🔢 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
24. 24.🌐 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
25. 25.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
26. 26.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a wind-up clock (d) a Wi-Fi doorbell camera
27. 27.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the board reads it (c) the cloud stores it (d) the app shows it
28. 28.What does the microcontroller do? (a) acts on a command (b) measures the real world (c) carries the data (d) reads values, decides
29. 29.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a smart energy meter (d) a plain wall switch
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 doorbell camera (d) a pencil sharpener
31. 31.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
32. 32.What does the actuator do? (a) stores data online (b) shows data to you (c) reads values, decides (d) acts on a command
33. 33.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
34. 34.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain wall switch (c) a paper calendar (d) a wind-up clock
35. 35.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) it is sent by Wi-Fi (b) the cloud stores it
37. 37.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a paper calendar (d) an app-controlled bulb
38. 38.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
39. 39.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a paper calendar (d) a wind-up clock
40. 40.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?

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