Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 466 · 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.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
2. 2.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) cloud server (c) actuator (d) sensor
3. 3.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
4. 4.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) a hand fan (d) lights on from an app
5. 5.What does the microcontroller do? (a) reads values, decides (b) carries the data (c) measures the real world (d) stores data online
6. 6.🌐 In an IoT system, which part carries the data? (a) actuator (b) cloud server (c) phone app (d) Wi-Fi
7. 7.What does the cloud server do? (a) stores data online (b) shows data to you (c) carries the data (d) acts on a command
8. 8.🔍 Which is the odd one out? (a) a plain table fan (b) a smart energy meter (c) a paper calendar (d) a plain wall switch
9. 9.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
10. 10.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
12. 12.What does the sensor do? (a) reads values, decides (b) carries the data (c) acts on a command (d) measures the real world
13. 13.🌐 In an IoT system, which part acts on a command? (a) actuator (b) Wi-Fi (c) microcontroller (d) phone app
14. 14.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a smart energy meter (d) a battery torch
15. 15.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🔢 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
17. 17.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
19. 19.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a wind-up clock (d) a fitness band with app
20. 20.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi weather station (c) a smart energy meter (d) a Wi-Fi smart plug
21. 21.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
22. 22.🌐 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
23. 23.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a smart energy meter
24. 24.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
25. 25.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
26. 26.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
27. 27.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a battery torch (c) an app-controlled bulb (d) a Wi-Fi smart plug
28. 28.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
29. 29.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a wind-up clock (d) a Wi-Fi weather station
30. 30.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
31. 31.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a plain table fan (d) a battery torch
32. 32.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
33. 33.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the cloud stores it
34. 34.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
35. 35.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🔍 Which is the odd one out? (a) a fitness band with app (b) a pencil sharpener (c) a Wi-Fi weather station (d) a smart energy meter
37. 37.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
38. 38.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a fitness band with app (d) a smart energy meter
39. 39.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) sensor (c) actuator (d) microcontroller
40. 40.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?

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