Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 90 · 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.🌐 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
2. 2.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) Wi-Fi (c) sensor (d) phone app
3. 3.🌐 In an IoT system, which part acts on a command? (a) actuator (b) phone app (c) Wi-Fi (d) sensor
4. 4.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
5. 5.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
6. 6.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
8. 8.What does the phone app do? (a) carries the data (b) stores data online (c) shows data to you (d) reads values, decides
9. 9.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a battery torch (d) a plain table fan
10. 10.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a plain wall switch (d) a plain table fan
11. 11.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain table fan (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
12. 12.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a plain wall switch
13. 13.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
14. 14.Which of these is an IoT device? (a) a paper calendar (b) a pencil sharpener (c) an app-controlled bulb (d) a plain wall switch
15. 15.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) microcontroller (c) phone app (d) actuator
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
17. 17.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
18. 18.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a smart energy meter (d) a Wi-Fi smart plug
19. 19.Which of these is not an IoT device? (a) a plain wall switch (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a fitness band with app
20. 20.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
21. 21.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) a Wi-Fi doorbell camera
22. 22.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a Wi-Fi smart plug (d) a pencil sharpener
23. 23.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
25. 25.What does the microcontroller do? (a) shows data to you (b) stores data online (c) measures the real world (d) reads values, decides
26. 26.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
27. 27.🌐 In an IoT system, which part carries the data? (a) actuator (b) microcontroller (c) Wi-Fi (d) phone app
28. 28.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
29. 29.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
30. 30.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
33. 33.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
34. 34.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
35. 35.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) a Wi-Fi smart plug (d) an app-controlled bulb
36. 36.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
37. 37.Which of these is not an IoT device? (a) a paper calendar (b) a smart energy meter (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
38. 38.🔢 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
39. 39.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
40. 40.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device

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