Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 538 · 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 plain wall switch (b) a smart energy meter (c) a battery torch (d) a pencil sharpener
2. 2.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a plain wall switch
3. 3.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a hand fan (d) a candle in a jar
4. 4.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a smart energy meter (d) a battery torch
5. 5.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
6. 6.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the board reads it
7. 7.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
8. 8.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the board reads it (c) the sensor measures (d) it is sent by Wi-Fi
9. 9.What does the phone app do? (a) acts on a command (b) measures the real world (c) stores data online (d) shows data to you
10. 10.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a paper calendar (d) a smart energy meter
11. 11.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
12. 12.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a battery torch
13. 13.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
14. 14.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a plain table fan
15. 15.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Inside of Toys (d) Input of Tools
16. 16.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
18. 18.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
19. 19.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
20. 20.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the app shows it (b) the board reads it
22. 22.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
23. 23.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) Wi-Fi (c) actuator (d) microcontroller
24. 24.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) a pencil sharpener (d) a plain wall switch
25. 25.What does the microcontroller do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) stores data online
26. 26.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
27. 27.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
29. 29.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a plain table fan (d) a Wi-Fi doorbell camera
30. 30.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi weather station (c) a wind-up clock (d) a battery torch
31. 31.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) a pencil sharpener (d) a fitness band with app
32. 32.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the board reads it (c) the cloud stores it (d) the app shows it
33. 33.What does the Wi-Fi link do? (a) measures the real world (b) reads values, decides (c) shows data to you (d) carries the data
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
35. 35.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
36. 36.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
37. 37.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a smart energy meter
38. 38.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 90 readings take?
39. 39.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a battery torch (d) a Wi-Fi weather station
40. 40.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?

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