Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 219 · 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 is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a smart energy meter (d) a wind-up clock
2. 2.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
3. 3.What does the sensor do? (a) carries the data (b) measures the real world (c) shows data to you (d) stores data online
4. 4.What does the phone app do? (a) measures the real world (b) carries the data (c) reads values, decides (d) shows data to you
5. 5.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
6. 6.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
7. 7.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🌐 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
10. 10.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
11. 11.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
12. 12.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a paper calendar (d) an app-controlled bulb
13. 13.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
14. 14.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Internet of Things (d) Inside of Toys
15. 15.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a battery torch (d) a smart energy meter
16. 16.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) actuator (c) Wi-Fi (d) sensor
17. 17.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a plain wall switch (d) a paper calendar
19. 19.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the cloud stores it
20. 20.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) Wi-Fi (c) phone app (d) actuator
21. 21.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) actuator (c) sensor (d) phone app
23. 23.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) a Wi-Fi weather station
24. 24.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi weather station (c) a battery torch (d) a wind-up clock
25. 25.Which of these is an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a battery torch (d) a wind-up clock
26. 26.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
27. 27.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) a fitness band with app (d) a Wi-Fi doorbell camera
29. 29.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
30. 30.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 110 readings take?
31. 31.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
32. 32.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) microcontroller (c) actuator (d) cloud server
33. 33.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
34. 34.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) an app-controlled bulb
35. 35.🔍 Which is the odd one out? (a) a paper calendar (b) a fitness band with app (c) an app-controlled bulb (d) a Wi-Fi weather station
36. 36.🔢 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
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) the sensor measures (b) it is sent by Wi-Fi
38. 38.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a fitness band with app (d) a plain wall switch
39. 39.🔢 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
40. 40.🌐 In an IoT system, which part stores data online? (a) actuator (b) cloud server (c) sensor (d) microcontroller

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