Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 63 · 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 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
3. 3.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
4. 4.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
5. 5.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a Wi-Fi weather station (d) a pencil sharpener
6. 6.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a fitness band with app (d) a pencil sharpener
7. 7.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
8. 8.What does the sensor do? (a) measures the real world (b) reads values, decides (c) stores data online (d) shows data to you
9. 9.Which of these is an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a battery torch (d) a paper calendar
10. 10.🔢 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
11. 11.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) microcontroller (c) sensor (d) cloud server
12. 12.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
13. 13.Which of these is not an IoT device? (a) a paper calendar (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
14. 14.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
16. 16.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
17. 17.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 200 readings take?
18. 18.What does the microcontroller do? (a) measures the real world (b) carries the data (c) stores data online (d) reads values, decides
19. 19.What does the Wi-Fi link do? (a) carries the data (b) measures the real world (c) reads values, decides (d) shows data to you
20. 20.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
22. 22.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
23. 23.What does the actuator do? (a) carries the data (b) reads values, decides (c) acts on a command (d) measures the real world
24. 24.What does the cloud server do? (a) stores data online (b) acts on a command (c) carries the data (d) reads values, decides
25. 25.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Internet of Things (d) Input of Tools
26. 26.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
27. 27.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a plain wall switch (d) a smart energy meter
29. 29.🌐 In an IoT system, which part stores data online? (a) sensor (b) phone app (c) cloud server (d) Wi-Fi
30. 30.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
32. 32.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 battery torch
33. 33.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a wind-up clock (d) a smart energy meter
34. 34.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a plain table fan (d) an app-controlled bulb
35. 35.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) microcontroller (c) sensor (d) actuator
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) the sensor measures (b) it is sent by Wi-Fi
37. 37.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the app shows it (c) the cloud stores it (d) the board reads it
38. 38.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
39. 39.🔢 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
40. 40.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device

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