Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 357 · 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.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Input of Tools (d) Inside of Toys
2. 2.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a paper calendar (d) an app-controlled bulb
5. 5.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the sensor measures (d) the app shows it
6. 6.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
8. 8.🏠 Which is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a hand fan (d) a printed map
9. 9.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
10. 10.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
11. 11.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
12. 12.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) cloud server (c) sensor (d) actuator
13. 13.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
14. 14.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
15. 15.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
16. 16.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
17. 17.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a battery torch (d) a paper calendar
18. 18.What does the Wi-Fi link do? (a) carries the data (b) measures the real world (c) stores data online (d) acts on a command
19. 19.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a battery torch (c) a paper calendar (d) a plain wall switch
20. 20.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a plain table fan (d) a plain wall switch
21. 21.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
22. 22.Which of these is an IoT device? (a) a battery torch (b) a smart energy meter (c) a pencil sharpener (d) a paper calendar
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it
24. 24.🔍 Which is the odd one out? (a) a pencil sharpener (b) a smart energy meter (c) a Wi-Fi smart plug (d) a fitness band with app
25. 25.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
26. 26.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
27. 27.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
28. 28.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a plain table fan (d) an app-controlled bulb
29. 29.🌐 In an IoT system, which part shows data to you? (a) sensor (b) phone app (c) actuator (d) cloud server
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a plain table fan (d) an app-controlled bulb
31. 31.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
32. 32.What does the microcontroller do? (a) stores data online (b) measures the real world (c) reads values, decides (d) acts on a command
33. 33.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a wind-up clock
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the app shows it (b) the cloud stores it
35. 35.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
36. 36.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
37. 37.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
38. 38.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) through a candle (d) by post
40. 40.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?

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