Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 620 · 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.🔢 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 cloud stores it (d) the board reads it
2. 2.Which of these is not an IoT device? (a) a fitness band with app (b) a battery torch (c) a smart energy meter (d) an app-controlled bulb
3. 3.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) an app-controlled bulb (d) a wind-up clock
4. 4.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
5. 5.🌐 In an IoT system, which part acts on a command? (a) phone app (b) sensor (c) actuator (d) Wi-Fi
6. 6.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 110 readings take?
7. 7.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a smart energy meter (d) a plain wall switch
9. 9.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) over Wi-Fi (d) by post
10. 10.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
12. 12.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi smart plug (c) a plain table fan (d) a plain wall switch
13. 13.What does the cloud server do? (a) acts on a command (b) stores data online (c) measures the real world (d) carries the data
14. 14.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a fitness band with app
15. 15.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
16. 16.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) a hand fan (d) lights on from an app
17. 17.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
18. 18.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a plain wall switch (d) a plain table fan
19. 19.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) cloud server (c) actuator (d) sensor
20. 20.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
21. 21.What does the phone app do? (a) carries the data (b) acts on a command (c) stores data online (d) shows data to you
22. 22.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
23. 23.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a fitness band with app (d) a pencil sharpener
24. 24.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🔢 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
27. 27.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
29. 29.Which of these is an IoT device? (a) a pencil sharpener (b) a plain table fan (c) an app-controlled bulb (d) a paper calendar
30. 30.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
32. 32.🌐 In an IoT system, which part stores data online? (a) sensor (b) actuator (c) cloud server (d) Wi-Fi
33. 33.🔍 Which is the odd one out? (a) a fitness band with app (b) a pencil sharpener (c) a smart energy meter (d) a Wi-Fi doorbell camera
34. 34.🔢 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
35. 35.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a plain table fan (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
36. 36.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
37. 37.🔢 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
38. 38.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
39. 39.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a plain table fan (c) a battery torch (d) a wind-up clock
40. 40.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?

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