Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 201 · 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) an app-controlled bulb (b) a pencil sharpener (c) a fitness band with app (d) a smart energy meter
2. 2.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the cloud stores it (c) the sensor measures (d) the app shows it
3. 3.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
4. 4.What does the sensor do? (a) reads values, decides (b) stores data online (c) carries the data (d) measures the real world
5. 5.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
6. 6.What does the phone app do? (a) measures the real world (b) acts on a command (c) shows data to you (d) stores data online
7. 7.🔢 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 cloud stores it (d) the board reads it
8. 8.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a pencil sharpener
9. 9.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a wind-up clock (d) a Wi-Fi smart plug
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
11. 11.🔢 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
12. 12.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by shouting (d) by post
13. 13.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
14. 14.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a smart energy meter
15. 15.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a plain table fan (c) a pencil sharpener (d) a battery torch
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
17. 17.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
18. 18.What does the microcontroller do? (a) reads values, decides (b) shows data to you (c) acts on a command (d) stores data online
19. 19.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
20. 20.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a fitness band with app
21. 21.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Internet of Things (d) Inside of Toys
22. 22.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 150 readings take?
23. 23.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) phone app (c) sensor (d) microcontroller
25. 25.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the sensor measures (c) the cloud stores it (d) the app shows it
26. 26.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a paper calendar
27. 27.🌐 In an IoT system, which part stores data online? (a) actuator (b) cloud server (c) microcontroller (d) phone app
28. 28.What does the cloud server do? (a) stores data online (b) shows data to you (c) measures the real world (d) reads values, decides
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
30. 30.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
31. 31.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
32. 32.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
33. 33.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a plain table fan
34. 34.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
35. 35.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
36. 36.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a plain table fan (d) a Wi-Fi doorbell camera
39. 39.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
40. 40.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a plain wall switch

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