Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 7 · 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.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) actuator (c) phone app (d) cloud server
2. 2.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
3. 3.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
4. 4.Which of these is an IoT device? (a) a fitness band with app (b) a pencil sharpener (c) a plain table fan (d) a paper calendar
5. 5.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a plain table fan (d) a Wi-Fi weather station
6. 6.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
7. 7.🔢 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 board reads it (c) the sensor measures (d) the cloud stores it
8. 8.What does the phone app do? (a) reads values, decides (b) stores data online (c) shows data to you (d) measures the real world
9. 9.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
12. 12.🌐 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
13. 13.Which of these is an IoT device? (a) a wind-up clock (b) an app-controlled bulb (c) a paper calendar (d) a pencil sharpener
14. 14.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) a wind-up clock (d) an app-controlled bulb
15. 15.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
16. 16.What does the Wi-Fi link do? (a) stores data online (b) measures the real world (c) carries the data (d) shows data to you
17. 17.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?
18. 18.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
20. 20.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
22. 22.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) Wi-Fi (c) actuator (d) phone app
23. 23.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
24. 24.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a wind-up clock
25. 25.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) lights on from an app (d) a hand fan
26. 26.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
27. 27.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
28. 28.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
29. 29.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a battery torch (d) an app-controlled bulb
30. 30.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
31. 31.What does the sensor do? (a) stores data online (b) reads values, decides (c) carries the data (d) measures the real world
32. 32.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a wind-up clock (d) a fitness band with app
33. 33.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
34. 34.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
35. 35.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a wind-up clock
36. 36.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a pencil sharpener (d) a Wi-Fi doorbell camera
37. 37.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 In an IoT system, which part carries the data? (a) sensor (b) actuator (c) Wi-Fi (d) cloud server
39. 39.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a plain wall switch (d) a Wi-Fi smart plug
40. 40.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?

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