Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 402 · 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.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) by post (d) over Wi-Fi
2. 2.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
4. 4.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a fitness band with app (d) a plain wall switch
5. 5.🔍 Which is the odd one out? (a) a fitness band with app (b) a paper calendar (c) a plain table fan (d) a battery torch
6. 6.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
7. 7.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
8. 8.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 200 readings take?
9. 9.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
10. 10.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
11. 11.What does the cloud server do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) stores data online
12. 12.Which of these is an IoT device? (a) a wind-up clock (b) a plain table fan (c) a paper calendar (d) an app-controlled bulb
13. 13.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) an app-controlled bulb (d) a plain table fan
14. 14.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
15. 15.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
16. 16.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
18. 18.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi smart plug (c) a battery torch (d) a wind-up clock
19. 19.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🔍 Which is the odd one out? (a) a smart energy meter (b) a paper calendar (c) a Wi-Fi smart plug (d) a fitness band with app
21. 21.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain table fan (c) an app-controlled bulb (d) a Wi-Fi weather station
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
23. 23.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
24. 24.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the app shows it (c) the board reads it (d) the cloud stores it
25. 25.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
26. 26.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a pencil sharpener
27. 27.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a plain wall switch
28. 28.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
29. 29.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
30. 30.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the board reads it
31. 31.What does the phone app do? (a) stores data online (b) reads values, decides (c) shows data to you (d) measures the real world
32. 32.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
33. 33.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
34. 34.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) microcontroller (c) Wi-Fi (d) actuator
36. 36.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
37. 37.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
38. 38.🔍 Which is the odd one out? (a) a wind-up clock (b) a smart energy meter (c) a pencil sharpener (d) a battery torch
39. 39.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the sensor measures
40. 40.What does the microcontroller do? (a) stores data online (b) acts on a command (c) reads values, decides (d) measures the real world

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