Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 707 · 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.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Internet of Things (d) Inside of Toys
2. 2.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) sensor (c) phone app (d) actuator
3. 3.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a battery torch (d) a plain wall switch
4. 4.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a fitness band with app (d) a wind-up clock
5. 5.Which of these is an IoT device? (a) a smart energy meter (b) a plain table fan (c) a paper calendar (d) a plain wall switch
6. 6.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
7. 7.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
8. 8.What does the sensor do? (a) measures the real world (b) reads values, decides (c) carries the data (d) shows data to you
9. 9.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the board reads it
10. 10.🌐 In an IoT system, which part stores data online? (a) cloud server (b) sensor (c) microcontroller (d) phone app
11. 11.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a candle in a jar (d) a hand fan
12. 12.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
13. 13.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
14. 14.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
17. 17.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
18. 18.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) microcontroller (c) actuator (d) phone app
19. 19.🌐 In an IoT system, which part measures the real world? (a) sensor (b) microcontroller (c) Wi-Fi (d) actuator
20. 20.What does the microcontroller do? (a) stores data online (b) reads values, decides (c) shows data to you (d) acts on a command
21. 21.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) over Wi-Fi (d) by shouting
22. 22.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the sensor measures (b) the app shows it
24. 24.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
26. 26.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
27. 27.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
28. 28.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a plain wall switch (d) a fitness band with app
29. 29.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 120 readings take?
30. 30.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a Wi-Fi smart plug (d) a pencil sharpener
31. 31.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
32. 32.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) an app-controlled bulb (d) a Wi-Fi weather station
33. 33.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the sensor measures (c) the board reads it (d) the cloud stores it
34. 34.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
35. 35.What does the phone app do? (a) acts on a command (b) shows data to you (c) measures the real world (d) carries the data
36. 36.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a smart energy meter
37. 37.🔍 Which is the odd one out? (a) a pencil sharpener (b) a fitness band with app (c) a Wi-Fi weather station (d) a smart energy meter
38. 38.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
39. 39.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?

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