Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 64 · 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 of these is an IoT device? (a) a Wi-Fi weather station (b) a battery torch (c) a plain table fan (d) a wind-up clock
2. 2.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the board reads it (c) the app shows it (d) the cloud stores it
3. 3.🌐 In an IoT system, which part acts on a command? (a) phone app (b) actuator (c) microcontroller (d) sensor
4. 4.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
5. 5.Which of these is an IoT device? (a) a battery torch (b) a fitness band with app (c) a plain table fan (d) a pencil sharpener
6. 6.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) a pencil sharpener (d) a plain wall switch
7. 7.What does the actuator do? (a) carries the data (b) reads values, decides (c) shows data to you (d) acts on a command
8. 8.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
9. 9.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
10. 10.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Input of Tools (d) Internet of Things
12. 12.🌐 In an IoT system, which part stores data online? (a) phone app (b) actuator (c) Wi-Fi (d) cloud server
13. 13.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
14. 14.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a paper calendar (d) a Wi-Fi weather station
15. 15.🔢 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
16. 16.🌐 In an IoT system, which part measures the real world? (a) sensor (b) Wi-Fi (c) phone app (d) cloud server
17. 17.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
18. 18.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
19. 19.What does the microcontroller do? (a) measures the real world (b) shows data to you (c) reads values, decides (d) carries the data
20. 20.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) an app-controlled bulb (d) a plain wall switch
21. 21.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) over Wi-Fi (d) by post
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
23. 23.What does the cloud server do? (a) stores data online (b) reads values, decides (c) measures the real world (d) acts on a command
24. 24.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain table fan (c) a paper calendar (d) a battery torch
25. 25.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) microcontroller (c) phone app (d) Wi-Fi
26. 26.🔢 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
27. 27.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a Wi-Fi weather station (d) a smart energy meter
28. 28.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a wind-up clock (d) a Wi-Fi smart plug
29. 29.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) the cloud stores it (b) it is sent by Wi-Fi
30. 30.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
31. 31.Which of these is an IoT device? (a) an app-controlled bulb (b) a pencil sharpener (c) a plain table fan (d) a plain wall switch
32. 32.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
33. 33.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 In an IoT system, which part carries the data? (a) sensor (b) Wi-Fi (c) microcontroller (d) phone app
36. 36.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
37. 37.What does the Wi-Fi link do? (a) reads values, decides (b) carries the data (c) measures the real world (d) acts on a command
38. 38.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
39. 39.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
40. 40.What does the sensor do? (a) acts on a command (b) shows data to you (c) reads values, decides (d) measures the real world

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