Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 489 · 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.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
2. 2.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
3. 3.Which of these is an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a plain wall switch (d) a battery torch
4. 4.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a plain table fan (d) a smart energy meter
5. 5.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
6. 6.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 In an IoT system, which part shows data to you? (a) actuator (b) cloud server (c) Wi-Fi (d) phone app
9. 9.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
11. 11.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) through a candle (d) over Wi-Fi
12. 12.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a plain table fan (d) a smart energy meter
13. 13.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?
14. 14.Which of these is not an IoT device? (a) a fitness band with app (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
15. 15.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 80 readings take?
16. 16.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
17. 17.🌐 In an IoT system, which part acts on a command? (a) phone app (b) sensor (c) cloud server (d) actuator
18. 18.🏠 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
19. 19.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Internet of Things (d) Input of Tools
20. 20.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
21. 21.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
22. 22.🔢 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 sensor measures (c) the board reads it (d) the app shows it
23. 23.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a paper calendar (d) an app-controlled bulb
24. 24.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
25. 25.Which of these is an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a paper calendar (d) a pencil sharpener
26. 26.🔢 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
27. 27.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) a wind-up clock (d) a smart energy meter
28. 28.🔢 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 cloud stores it (d) the app shows it
29. 29.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
30. 30.🔍 Which is the odd one out? (a) a plain table fan (b) a battery torch (c) an app-controlled bulb (d) a wind-up clock
31. 31.Which of these is not an IoT device? (a) a battery torch (b) a fitness band with app (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
32. 32.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
33. 33.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
34. 34.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 150 readings take?
35. 35.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
36. 36.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi smart plug (c) a wind-up clock (d) a pencil sharpener
37. 37.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
38. 38.🌐 In an IoT system, which part carries the data? (a) cloud server (b) microcontroller (c) Wi-Fi (d) sensor
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the sensor measures (b) the app shows it
40. 40.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the board reads it (b) the app shows it

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