Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 105 · 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 160 readings take?
2. 2.What does the phone app do? (a) shows data to you (b) measures the real world (c) reads values, decides (d) acts on a command
3. 3.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain table fan (c) a smart energy meter (d) a Wi-Fi doorbell camera
4. 4.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
5. 5.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
6. 6.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) a plain table fan (d) a wind-up clock
8. 8.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a smart energy meter (d) a battery torch
9. 9.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a paper calendar (d) a Wi-Fi smart plug
10. 10.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) an app-controlled bulb (d) a wind-up clock
12. 12.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a hand fan (d) a candle in a jar
13. 13.🌐 In an IoT system, which part carries the data? (a) sensor (b) Wi-Fi (c) microcontroller (d) actuator
14. 14.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) microcontroller (c) Wi-Fi (d) phone app
15. 15.What does the actuator do? (a) carries the data (b) stores data online (c) shows data to you (d) acts on a command
16. 16.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🌐 In an IoT system, which part stores data online? (a) cloud server (b) phone app (c) sensor (d) actuator
18. 18.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
19. 19.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a pencil sharpener
20. 20.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) by shouting (d) over Wi-Fi
21. 21.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
22. 22.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the board reads it (d) the app shows it
23. 23.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
24. 24.Which of these is an IoT device? (a) a smart energy meter (b) a plain wall switch (c) a plain table fan (d) a battery torch
25. 25.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) actuator (c) phone app (d) sensor
26. 26.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🔍 Which is the odd one out? (a) a wind-up clock (b) a fitness band with app (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
28. 28.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the sensor measures
29. 29.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
30. 30.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Internet of Things (d) Inside of Toys
31. 31.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a Wi-Fi weather station (d) a pencil sharpener
32. 32.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a smart energy meter (d) a Wi-Fi weather station
33. 33.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
34. 34.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
36. 36.Which of these is an IoT device? (a) a battery torch (b) a fitness band with app (c) a pencil sharpener (d) a plain wall switch
37. 37.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
39. 39.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
40. 40.What does the sensor do? (a) reads values, decides (b) stores data online (c) measures the real world (d) acts on a command

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