Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 378 · 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 an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a Wi-Fi weather station (d) a pencil sharpener
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain table fan (c) a Wi-Fi smart plug (d) a smart energy meter
3. 3.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
4. 4.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) through a candle (d) over Wi-Fi
5. 5.Which of these is not an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
6. 6.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
8. 8.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a paper calendar
10. 10.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
12. 12.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
13. 13.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
14. 14.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a plain wall switch (d) a Wi-Fi smart plug
15. 15.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a paper calendar
16. 16.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) a fitness band with app (d) a battery torch
17. 17.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
19. 19.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the board reads it (d) the cloud stores it
20. 20.🔍 Which is the odd one out? (a) a fitness band with app (b) a wind-up clock (c) an app-controlled bulb (d) a Wi-Fi weather station
21. 21.🌐 In an IoT system, which part stores data online? (a) cloud server (b) sensor (c) Wi-Fi (d) actuator
22. 22.What does the actuator do? (a) carries the data (b) reads values, decides (c) acts on a command (d) shows data to you
23. 23.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the app shows it (b) the board reads it
25. 25.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a printed map (d) a hand fan
26. 26.Which of these is not an IoT device? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) an app-controlled bulb
27. 27.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
29. 29.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🔢 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 app shows it (c) the sensor measures (d) the cloud stores it
31. 31.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a Wi-Fi weather station (d) a plain wall switch
32. 32.🔍 Which is the odd one out? (a) a plain table fan (b) a fitness band with app (c) a paper calendar (d) a battery torch
33. 33.What does the microcontroller do? (a) stores data online (b) reads values, decides (c) acts on a command (d) carries the data
34. 34.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) actuator (c) Wi-Fi (d) sensor
35. 35.🌐 In an IoT system, which part acts on a command? (a) actuator (b) sensor (c) Wi-Fi (d) phone app
36. 36.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 150 readings take?
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
38. 38.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
40. 40.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?

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