Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 514 · 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) an IoT device (b) not an IoT device
2. 2.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
3. 3.🔍 Which is the odd one out? (a) a fitness band with app (b) a battery torch (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
4. 4.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
5. 5.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
6. 6.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) through a candle (d) over Wi-Fi
7. 7.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the sensor measures
8. 8.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
9. 9.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a printed map (d) a candle in a jar
12. 12.🔍 Which is the odd one out? (a) a paper calendar (b) an app-controlled bulb (c) a plain table fan (d) a wind-up clock
13. 13.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the cloud stores it (b) the board reads it
15. 15.🌐 In an IoT system, which part stores data online? (a) cloud server (b) Wi-Fi (c) actuator (d) sensor
16. 16.🌐 In an IoT system, which part shows data to you? (a) actuator (b) Wi-Fi (c) sensor (d) phone app
17. 17.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) a fitness band with app (d) a plain wall switch
18. 18.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
19. 19.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
20. 20.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Input of Tools (d) Inside of Toys
21. 21.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a Wi-Fi weather station (d) a plain wall switch
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) the board reads it (b) it is sent by Wi-Fi
23. 23.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
24. 24.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 110 readings take?
25. 25.What does the Wi-Fi link do? (a) measures the real world (b) carries the data (c) acts on a command (d) stores data online
26. 26.What does the sensor do? (a) reads values, decides (b) acts on a command (c) carries the data (d) measures the real world
27. 27.🌐 In an IoT system, which part carries the data? (a) actuator (b) Wi-Fi (c) sensor (d) cloud server
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 140 readings take?
30. 30.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
31. 31.🔢 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 cloud stores it
32. 32.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
33. 33.🌐 In an IoT system, which part measures the real world? (a) actuator (b) microcontroller (c) Wi-Fi (d) sensor
34. 34.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
35. 35.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
36. 36.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
37. 37.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
39. 39.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a Wi-Fi smart plug (d) a plain table fan
40. 40.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a plain table fan (d) a pencil sharpener

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