Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 926 · 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.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a Wi-Fi doorbell camera
2. 2.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) over Wi-Fi (d) by post
3. 3.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
4. 4.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a fitness band with app
5. 5.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
6. 6.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
7. 7.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
8. 8.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
9. 9.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
10. 10.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
11. 11.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Input of Tools (d) Inside of Toys
12. 12.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a plain table fan (d) a smart energy meter
13. 13.🌐 In an IoT system, which part measures the real world? (a) phone app (b) sensor (c) actuator (d) Wi-Fi
14. 14.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a plain wall switch (d) a battery torch
15. 15.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
16. 16.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) lights on from an app (d) a candle in a jar
17. 17.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
18. 18.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain table fan (c) a smart energy meter (d) a fitness band with app
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the sensor measures (b) the cloud stores it
20. 20.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
21. 21.What does the phone app do? (a) stores data online (b) shows data to you (c) acts on a command (d) reads values, decides
22. 22.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a battery torch (d) an app-controlled bulb
23. 23.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a wind-up clock (d) a Wi-Fi doorbell camera
24. 24.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) Wi-Fi (c) phone app (d) microcontroller
25. 25.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
26. 26.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
28. 28.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
29. 29.What does the Wi-Fi link do? (a) stores data online (b) carries the data (c) acts on a command (d) measures the real world
30. 30.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🔍 Which is the odd one out? (a) a paper calendar (b) a wind-up clock (c) a fitness band with app (d) a pencil sharpener
32. 32.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
33. 33.Which of these is an IoT device? (a) an app-controlled bulb (b) a paper calendar (c) a plain wall switch (d) a wind-up clock
34. 34.🌐 In an IoT system, which part carries the data? (a) cloud server (b) actuator (c) microcontroller (d) Wi-Fi
35. 35.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
36. 36.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
37. 37.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) it is sent by Wi-Fi (b) the cloud stores it
39. 39.What does the cloud server do? (a) stores data online (b) measures the real world (c) shows data to you (d) acts on a command
40. 40.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a plain table fan

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