Electronics Worksheet: What Is IoT

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

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