Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 895 · 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.🌐 In an IoT system, which part stores data online? (a) sensor (b) actuator (c) phone app (d) cloud server
2. 2.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) Wi-Fi (c) sensor (d) actuator
3. 3.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
4. 4.🌐 In an IoT system, which part measures the real world? (a) phone app (b) sensor (c) actuator (d) Wi-Fi
5. 5.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
6. 6.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi smart plug
7. 7.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
8. 8.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
9. 9.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
10. 10.What does the actuator do? (a) acts on a command (b) carries the data (c) reads values, decides (d) shows data to you
11. 11.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a battery torch (d) a paper calendar
12. 12.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the board reads it (c) it is sent by Wi-Fi (d) the sensor measures
13. 13.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) sensor (c) phone app (d) Wi-Fi
14. 14.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
16. 16.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a battery torch (d) a Wi-Fi doorbell camera
17. 17.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a plain wall switch
18. 18.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a paper calendar (d) a fitness band with app
19. 19.What does the cloud server do? (a) measures the real world (b) carries the data (c) reads values, decides (d) stores data online
20. 20.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
21. 21.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
22. 22.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) a hand fan (d) lights on from an app
23. 23.What does the microcontroller do? (a) stores data online (b) acts on a command (c) reads values, decides (d) shows data to you
24. 24.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) an app-controlled bulb (d) a Wi-Fi smart plug
25. 25.Which of these is not an IoT device? (a) a smart energy meter (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a plain wall switch
26. 26.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) through a candle (d) by post
27. 27.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
28. 28.What does the Wi-Fi link do? (a) reads values, decides (b) measures the real world (c) carries the data (d) stores data online
29. 29.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 160 readings take?
30. 30.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a smart energy meter (d) a battery torch
31. 31.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
32. 32.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
33. 33.Which of these is an IoT device? (a) a battery torch (b) a smart energy meter (c) a pencil sharpener (d) a wind-up clock
34. 34.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a wind-up clock
35. 35.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
36. 36.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) actuator (c) phone app (d) microcontroller
37. 37.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
38. 38.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the sensor measures
39. 39.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it

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