Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 574 · 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 of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a fitness band with app (d) a plain wall switch
2. 2.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a Wi-Fi smart plug (d) a wind-up clock
3. 3.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Internet of Things (d) Input of Tools
4. 4.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a paper calendar (d) a Wi-Fi smart plug
5. 5.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
6. 6.What does the microcontroller do? (a) acts on a command (b) stores data online (c) reads values, decides (d) carries the data
7. 7.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) an app-controlled bulb (d) a plain table fan
9. 9.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
11. 11.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
12. 12.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a fitness band with app (d) a Wi-Fi weather station
13. 13.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a plain table fan (d) a smart energy meter
14. 14.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a candle in a jar (d) a printed map
15. 15.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a fitness band with app
16. 16.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
17. 17.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
18. 18.What does the cloud server do? (a) carries the data (b) reads values, decides (c) stores data online (d) measures the real world
19. 19.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
20. 20.🌐 In an IoT system, which part carries the data? (a) sensor (b) phone app (c) actuator (d) Wi-Fi
21. 21.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the app shows it
22. 22.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
24. 24.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by post (d) by shouting
25. 25.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) phone app (c) sensor (d) microcontroller
26. 26.🔢 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
27. 27.Which of these is an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a plain wall switch (d) a plain table fan
28. 28.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
29. 29.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a wind-up clock (d) an app-controlled bulb
30. 30.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
31. 31.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a wind-up clock (d) a Wi-Fi doorbell camera
32. 32.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a fitness band with app (d) a battery torch
33. 33.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
34. 34.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures
35. 35.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a battery torch (d) an app-controlled bulb
36. 36.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) it is sent by Wi-Fi
37. 37.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a smart energy meter (d) a plain wall switch
38. 38.What does the Wi-Fi link do? (a) reads values, decides (b) carries the data (c) shows data to you (d) measures the real world
39. 39.What does the actuator do? (a) reads values, decides (b) acts on a command (c) carries the data (d) shows data to you
40. 40.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) actuator (c) cloud server (d) phone app

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