Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 47 · 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 pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
2. 2.What does the actuator do? (a) shows data to you (b) stores data online (c) acts on a command (d) measures the real world
3. 3.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a hand fan (d) a candle in a jar
5. 5.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
6. 6.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) a plain table fan (d) a Wi-Fi smart plug
7. 7.🔢 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
8. 8.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) actuator (c) Wi-Fi (d) phone app
9. 9.🔢 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 cloud stores it (d) the sensor measures
10. 10.What does the sensor do? (a) acts on a command (b) stores data online (c) reads values, decides (d) measures the real world
11. 11.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a fitness band with app (d) a wind-up clock
13. 13.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a wind-up clock (d) a smart energy meter
14. 14.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
15. 15.Which of these is an IoT device? (a) a plain wall switch (b) a fitness band with app (c) a pencil sharpener (d) a wind-up clock
16. 16.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) an app-controlled bulb (d) a battery torch
17. 17.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
18. 18.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
19. 19.What does the phone app do? (a) acts on a command (b) shows data to you (c) carries the data (d) measures the real world
20. 20.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) the board reads it
21. 21.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
22. 22.What does the Wi-Fi link do? (a) reads values, decides (b) acts on a command (c) measures the real world (d) carries the data
23. 23.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi doorbell camera
24. 24.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) an app-controlled bulb (d) a pencil sharpener
25. 25.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) phone app (c) sensor (d) cloud server
26. 26.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
27. 27.🔍 Which is the odd one out? (a) a pencil sharpener (b) a smart energy meter (c) a battery torch (d) a wind-up clock
28. 28.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?
29. 29.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) Wi-Fi (d) phone app
31. 31.Which of these is not an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
32. 32.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
34. 34.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) by shouting (d) through a candle
35. 35.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) cloud server (c) Wi-Fi (d) sensor
36. 36.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
37. 37.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a fitness band with app
39. 39.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
40. 40.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a Wi-Fi smart plug (d) a plain table fan

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