Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 771 · 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.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
2. 2.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
3. 3.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) by shouting (d) through a candle
4. 4.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a fitness band with app (d) a plain table fan
5. 5.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
6. 6.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 In an IoT system, which part measures the real world? (a) actuator (b) Wi-Fi (c) microcontroller (d) sensor
8. 8.What does the phone app do? (a) reads values, decides (b) acts on a command (c) shows data to you (d) stores data online
9. 9.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
10. 10.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the board reads it
12. 12.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a pencil sharpener (d) a fitness band with app
13. 13.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a fitness band with app (d) a battery torch
14. 14.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) a Wi-Fi weather station (d) a paper calendar
15. 15.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
16. 16.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
17. 17.What does the microcontroller do? (a) acts on a command (b) shows data to you (c) reads values, decides (d) carries the data
18. 18.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🔍 Which is the odd one out? (a) a smart energy meter (b) a paper calendar (c) a battery torch (d) a plain wall switch
20. 20.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a fitness band with app (d) a Wi-Fi weather station
21. 21.What does the cloud server do? (a) acts on a command (b) reads values, decides (c) shows data to you (d) stores data online
22. 22.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
23. 23.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) cloud server (c) actuator (d) phone app
24. 24.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) lights on from an app (d) a candle in a jar
26. 26.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi smart plug (c) a battery torch (d) a pencil sharpener
27. 27.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
28. 28.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a plain wall switch
29. 29.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a Wi-Fi smart plug (d) a wind-up clock
30. 30.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a plain wall switch (d) a battery torch
31. 31.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) microcontroller (c) sensor (d) actuator
32. 32.What does the sensor do? (a) reads values, decides (b) carries the data (c) measures the real world (d) shows data to you
33. 33.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a paper calendar (d) a wind-up clock
35. 35.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
36. 36.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a plain table fan (d) a Wi-Fi doorbell camera
37. 37.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
38. 38.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a plain wall switch
39. 39.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) the board reads it

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