Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 256 · 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 weather station (b) an app-controlled bulb (c) a fitness band with app (d) a pencil sharpener
2. 2.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) a plain table fan (d) a paper calendar
3. 3.What does the microcontroller do? (a) shows data to you (b) measures the real world (c) reads values, decides (d) stores data online
4. 4.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a fitness band with app
5. 5.🌐 In an IoT system, which part acts on a command? (a) actuator (b) Wi-Fi (c) cloud server (d) sensor
6. 6.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
7. 7.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 80 readings take?
8. 8.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
9. 9.🔢 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
10. 10.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) lights on from an app (d) a hand fan
11. 11.Which of these is not an IoT device? (a) a plain table fan (b) a Wi-Fi weather station (c) a smart energy meter (d) a Wi-Fi smart plug
12. 12.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain table fan (c) an app-controlled bulb (d) a Wi-Fi weather station
13. 13.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🌐 In an IoT system, which part measures the real world? (a) sensor (b) Wi-Fi (c) phone app (d) microcontroller
15. 15.What does the cloud server do? (a) stores data online (b) reads values, decides (c) carries the data (d) shows data to you
16. 16.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) Wi-Fi (c) microcontroller (d) cloud server
17. 17.Which of these is an IoT device? (a) a battery torch (b) a smart energy meter (c) a plain wall switch (d) a wind-up clock
18. 18.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
19. 19.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) a plain wall switch (d) a wind-up clock
21. 21.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Inside of Toys (d) Input of Tools
22. 22.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
24. 24.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the board reads it (d) the sensor measures
25. 25.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
26. 26.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 In an IoT system, which part carries the data? (a) sensor (b) actuator (c) Wi-Fi (d) cloud server
28. 28.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
29. 29.What does the actuator do? (a) shows data to you (b) stores data online (c) acts on a command (d) carries the data
30. 30.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
31. 31.What does the Wi-Fi link do? (a) reads values, decides (b) shows data to you (c) carries the data (d) acts on a command
32. 32.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a paper calendar (d) a Wi-Fi smart plug
33. 33.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) phone app (c) sensor (d) microcontroller
34. 34.🌐 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
35. 35.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
36. 36.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a plain table fan (d) a battery torch
37. 37.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a battery torch
38. 38.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
40. 40.🔢 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) the sensor measures (d) it is sent by Wi-Fi

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