Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 462 · 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.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) sensor (c) microcontroller (d) cloud server
2. 2.What does the Wi-Fi link do? (a) shows data to you (b) measures the real world (c) stores data online (d) carries the data
3. 3.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
4. 4.What does the phone app do? (a) carries the data (b) acts on a command (c) shows data to you (d) reads values, decides
5. 5.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
6. 6.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Internet of Things (d) Inside of Toys
7. 7.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a plain wall switch (d) a Wi-Fi smart plug
8. 8.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by shouting (d) by post
9. 9.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the board reads it (d) the app shows it
10. 10.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
12. 12.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
13. 13.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
14. 14.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a hand fan (d) a candle in a jar
16. 16.What does the microcontroller do? (a) measures the real world (b) shows data to you (c) reads values, decides (d) acts on a command
17. 17.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) sensor (c) microcontroller (d) actuator
18. 18.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
19. 19.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) a wind-up clock (d) a Wi-Fi doorbell camera
20. 20.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
22. 22.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a Wi-Fi weather station (d) a battery torch
23. 23.🌐 In an IoT system, which part stores data online? (a) actuator (b) phone app (c) cloud server (d) sensor
24. 24.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
25. 25.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
26. 26.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
28. 28.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) Wi-Fi (c) sensor (d) phone app
29. 29.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
31. 31.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
32. 32.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
33. 33.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
34. 34.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
35. 35.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a wind-up clock (d) a Wi-Fi doorbell camera
36. 36.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a fitness band with app (d) a plain table fan
37. 37.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) actuator (c) Wi-Fi (d) sensor
38. 38.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a fitness band with app (d) a plain table fan
39. 39.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a Wi-Fi smart plug (d) a plain wall switch
40. 40.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a battery torch (d) a Wi-Fi doorbell camera

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