Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 120 · 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 10 bytes. How many bytes do 190 readings take?
2. 2.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
3. 3.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a paper calendar
4. 4.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a battery torch (d) an app-controlled bulb
5. 5.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
6. 6.🔢 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
7. 7.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a smart energy meter (d) a battery torch
8. 8.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
9. 9.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a battery torch
10. 10.What does the Wi-Fi link do? (a) shows data to you (b) carries the data (c) measures the real world (d) stores data online
11. 11.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
12. 12.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the app shows it
13. 13.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a Wi-Fi smart plug (d) a battery torch
14. 14.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
15. 15.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a pencil sharpener (d) a Wi-Fi weather station
16. 16.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
17. 17.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
18. 18.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a plain table fan (d) a plain wall switch
19. 19.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) through a candle (d) over Wi-Fi
20. 20.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a battery torch
21. 21.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
22. 22.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a printed map (d) a candle in a jar
24. 24.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) phone app (c) cloud server (d) actuator
25. 25.🌐 In an IoT system, which part measures the real world? (a) phone app (b) sensor (c) cloud server (d) microcontroller
26. 26.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
28. 28.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
29. 29.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain table fan (c) a battery torch (d) a pencil sharpener
30. 30.🔢 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
31. 31.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the app shows it (c) the board reads it (d) the sensor measures
32. 32.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
34. 34.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) microcontroller (c) Wi-Fi (d) phone app
36. 36.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
37. 37.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) an app-controlled bulb (d) a battery torch
38. 38.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 160 readings take?
39. 39.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) a paper calendar (d) a Wi-Fi doorbell camera
40. 40.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?

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