Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 700 · 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) Inside of Toys (b) Internet of Talk (c) Input of Tools (d) Internet of Things
2. 2.Which of these is an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a plain wall switch (d) a paper calendar
3. 3.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
4. 4.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) lights on from an app (d) a printed map
5. 5.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) through a candle (d) by post
6. 6.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) an app-controlled bulb (d) a plain wall switch
7. 7.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the cloud stores it
8. 8.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
9. 9.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
10. 10.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
12. 12.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
13. 13.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
14. 14.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
15. 15.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
16. 16.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a paper calendar
17. 17.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a battery torch (d) a Wi-Fi doorbell camera
18. 18.What does the sensor do? (a) reads values, decides (b) measures the real world (c) stores data online (d) carries the data
19. 19.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) phone app (c) sensor (d) microcontroller
21. 21.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain table fan (c) a paper calendar (d) a smart energy meter
22. 22.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a fitness band with app (d) a pencil sharpener
23. 23.What does the cloud server do? (a) shows data to you (b) reads values, decides (c) carries the data (d) stores data online
24. 24.🔢 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
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
26. 26.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 120 readings take?
27. 27.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a fitness band with app (d) a Wi-Fi doorbell camera
28. 28.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) sensor (c) cloud server (d) actuator
29. 29.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
30. 30.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) the board reads it
31. 31.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
32. 32.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the app shows it (d) the sensor measures
33. 33.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
34. 34.🌐 In an IoT system, which part stores data online? (a) cloud server (b) sensor (c) microcontroller (d) actuator
35. 35.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi weather station (c) a wind-up clock (d) a paper calendar
36. 36.What does the Wi-Fi link do? (a) measures the real world (b) stores data online (c) carries the data (d) shows data to you
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the board reads it (b) the app shows it
38. 38.🔍 Which is the odd one out? (a) a plain table fan (b) a battery torch (c) a plain wall switch (d) a Wi-Fi doorbell camera
39. 39.🌐 In an IoT system, which part measures the real world? (a) phone app (b) actuator (c) sensor (d) cloud server
40. 40.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device

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