Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 365 · 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 is a smart-home example? (a) a printed map (b) lights on from an app (c) a candle in a jar (d) a hand fan
2. 2.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) an app-controlled bulb (d) a plain wall switch
3. 3.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
4. 4.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
5. 5.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) over Wi-Fi (d) by post
6. 6.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) an app-controlled bulb (d) a plain wall switch
7. 7.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
8. 8.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the sensor measures (d) the cloud stores it
10. 10.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Inside of Toys (d) Internet of Talk
11. 11.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the board reads it
13. 13.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) Wi-Fi (c) phone app (d) microcontroller
14. 14.Which of these is not an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a Wi-Fi weather station (d) an app-controlled bulb
15. 15.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
16. 16.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a smart energy meter (c) an app-controlled bulb (d) a wind-up clock
18. 18.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a battery torch (d) a Wi-Fi doorbell camera
19. 19.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) cloud server (c) sensor (d) microcontroller
20. 20.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
21. 21.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a pencil sharpener
22. 22.🌐 In an IoT system, which part measures the real world? (a) sensor (b) phone app (c) Wi-Fi (d) microcontroller
23. 23.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
24. 24.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
25. 25.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
26. 26.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
27. 27.What does the microcontroller do? (a) measures the real world (b) stores data online (c) reads values, decides (d) acts on a command
28. 28.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
29. 29.Which of these is an IoT device? (a) a paper calendar (b) a fitness band with app (c) a battery torch (d) a plain wall switch
30. 30.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a wind-up clock
31. 31.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a battery torch (d) a wind-up clock
32. 32.What does the phone app do? (a) shows data to you (b) carries the data (c) measures the real world (d) stores data online
33. 33.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
35. 35.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
37. 37.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
38. 38.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a plain wall switch (d) a smart energy meter
39. 39.🔍 Which is the odd one out? (a) a plain table fan (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a smart energy meter
40. 40.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?

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