Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 891 · 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.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
2. 2.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
3. 3.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) phone app (c) Wi-Fi (d) cloud server
4. 4.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) actuator (c) phone app (d) sensor
5. 5.🔢 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
6. 6.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
7. 7.What does the phone app do? (a) stores data online (b) shows data to you (c) reads values, decides (d) measures the real world
8. 8.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the cloud stores it (b) the board reads it
9. 9.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
10. 10.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a wind-up clock (d) a smart energy meter
11. 11.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
12. 12.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) lights on from an app (d) a printed map
13. 13.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a plain wall switch (d) a battery torch
14. 14.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
15. 15.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
17. 17.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
18. 18.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
19. 19.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
20. 20.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
21. 21.🔍 Which is the odd one out? (a) a pencil sharpener (b) an app-controlled bulb (c) a wind-up clock (d) a plain wall switch
22. 22.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
23. 23.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
24. 24.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) the cloud stores it (b) it is sent by Wi-Fi
26. 26.🔢 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
27. 27.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) by shouting (d) over Wi-Fi
28. 28.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the sensor measures
29. 29.What does the Wi-Fi link do? (a) stores data online (b) measures the real world (c) carries the data (d) shows data to you
30. 30.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
32. 32.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a wind-up clock (d) a smart energy meter
33. 33.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
34. 34.What does the cloud server do? (a) shows data to you (b) measures the real world (c) reads values, decides (d) stores data online
35. 35.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the cloud stores it (d) the board reads it
36. 36.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
37. 37.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
38. 38.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
39. 39.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) a Wi-Fi weather station (d) a pencil sharpener
40. 40.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) sensor (c) microcontroller (d) actuator

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