Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 141 · 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.🔢 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 sensor measures (c) the app shows it (d) the cloud stores it
2. 2.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
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.What does the Wi-Fi link do? (a) measures the real world (b) shows data to you (c) reads values, decides (d) carries the data
5. 5.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
6. 6.What does the phone app do? (a) stores data online (b) shows data to you (c) carries the data (d) acts on a command
7. 7.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
8. 8.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) phone app (c) cloud server (d) Wi-Fi
10. 10.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) it is sent by Wi-Fi (c) the board reads it (d) the sensor measures
11. 11.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
12. 12.What does the cloud server do? (a) reads values, decides (b) measures the real world (c) stores data online (d) carries the data
13. 13.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a plain table fan (d) a fitness band with app
14. 14.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
15. 15.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a plain wall switch (d) a wind-up clock
16. 16.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a pencil sharpener (d) a plain table fan
17. 17.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
18. 18.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) an app-controlled bulb (d) a battery torch
19. 19.Which of these is an IoT device? (a) a paper calendar (b) a smart energy meter (c) a battery torch (d) a plain table fan
20. 20.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi weather station (c) a plain wall switch (d) a wind-up clock
21. 21.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🌐 In an IoT system, which part shows data to you? (a) sensor (b) phone app (c) actuator (d) Wi-Fi
23. 23.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 fitness band with app
24. 24.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) microcontroller (c) phone app (d) sensor
25. 25.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a fitness band with app (d) a plain wall switch
26. 26.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures
27. 27.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
28. 28.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Inside of Toys (d) Internet of Talk
29. 29.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) by shouting (d) through a candle
30. 30.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
31. 31.Which of these is not an IoT device? (a) a battery torch (b) a smart energy meter (c) a Wi-Fi smart plug (d) a fitness band with app
32. 32.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a Wi-Fi weather station (d) a fitness band with app
33. 33.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
34. 34.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
35. 35.What does the sensor do? (a) stores data online (b) reads values, decides (c) measures the real world (d) acts on a command
36. 36.What does the microcontroller do? (a) shows data to you (b) reads values, decides (c) measures the real world (d) carries the data
37. 37.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
38. 38.🌐 In an IoT system, which part acts on a command? (a) actuator (b) microcontroller (c) sensor (d) cloud server
39. 39.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a smart energy meter (d) a plain wall switch
40. 40.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?

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