Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 746 · 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 Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
2. 2.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a plain wall switch (d) a smart energy meter
3. 3.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi weather station (c) a paper calendar (d) a plain table fan
4. 4.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) a hand fan (d) lights on from an app
5. 5.What does the microcontroller do? (a) reads values, decides (b) stores data online (c) shows data to you (d) carries the data
6. 6.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a paper calendar (d) a Wi-Fi doorbell camera
7. 7.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
8. 8.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
9. 9.What does the sensor do? (a) measures the real world (b) stores data online (c) reads values, decides (d) acts on a command
10. 10.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the board reads it (c) the app shows it (d) the sensor measures
12. 12.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
13. 13.What does the actuator do? (a) shows data to you (b) stores data online (c) acts on a command (d) measures the real world
14. 14.What does the Wi-Fi link do? (a) reads values, decides (b) measures the real world (c) shows data to you (d) carries the data
15. 15.Which of these is an IoT device? (a) a wind-up clock (b) an app-controlled bulb (c) a plain wall switch (d) a battery torch
16. 16.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain table fan (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
18. 18.🌐 In an IoT system, which part shows data to you? (a) actuator (b) phone app (c) sensor (d) cloud server
19. 19.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a plain table fan (d) a fitness band with app
20. 20.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 170 readings take?
21. 21.🔍 Which is the odd one out? (a) a fitness band with app (b) a paper calendar (c) an app-controlled bulb (d) a Wi-Fi smart plug
22. 22.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
23. 23.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) sensor (c) cloud server (d) microcontroller
24. 24.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a wind-up clock
25. 25.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
26. 26.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Internet of Things (d) Input of Tools
28. 28.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) the board reads it
29. 29.🔢 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
30. 30.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
32. 32.🌐 In an IoT system, which part measures the real world? (a) actuator (b) cloud server (c) sensor (d) Wi-Fi
33. 33.Which of these is an IoT device? (a) a fitness band with app (b) a battery torch (c) a plain wall switch (d) a paper calendar
34. 34.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
35. 35.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
36. 36.Which of these is not an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a Wi-Fi smart plug (d) an app-controlled bulb
37. 37.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 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
40. 40.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?

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