Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 793 · 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 carries the data? (a) cloud server (b) sensor (c) actuator (d) Wi-Fi
2. 2.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) a battery torch (d) a Wi-Fi doorbell camera
3. 3.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a plain table fan
4. 4.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a paper calendar
5. 5.Which of these is not an IoT device? (a) a smart energy meter (b) a fitness band with app (c) a battery torch (d) an app-controlled bulb
6. 6.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a plain table fan (d) a Wi-Fi smart plug
7. 7.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
8. 8.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
9. 9.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
10. 10.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by shouting (d) by post
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) the board reads it
12. 12.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) lights on from an app (d) a printed map
14. 14.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a smart energy meter (d) a wind-up clock
15. 15.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
16. 16.Which of these is not an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a Wi-Fi smart plug
17. 17.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a fitness band with app (d) a pencil sharpener
18. 18.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a wind-up clock (d) a Wi-Fi weather station
19. 19.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
20. 20.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
21. 21.What does the cloud server do? (a) stores data online (b) reads values, decides (c) measures the real world (d) acts on a command
22. 22.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
23. 23.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a battery torch (d) a plain table fan
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) the app shows it (b) it is sent by Wi-Fi
25. 25.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 150 readings take?
26. 26.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
27. 27.🌐 In an IoT system, which part shows data to you? (a) actuator (b) sensor (c) phone app (d) Wi-Fi
28. 28.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) a plain table fan (d) a paper calendar
29. 29.What does the Wi-Fi link do? (a) acts on a command (b) measures the real world (c) carries the data (d) stores data online
30. 30.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
31. 31.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) the sensor measures (b) it is sent by Wi-Fi
33. 33.What does the sensor do? (a) carries the data (b) acts on a command (c) measures the real world (d) reads values, decides
34. 34.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) actuator (c) cloud server (d) microcontroller
36. 36.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
37. 37.What does the microcontroller do? (a) stores data online (b) reads values, decides (c) measures the real world (d) acts on a command
38. 38.🌐 In an IoT system, which part measures the real world? (a) sensor (b) phone app (c) cloud server (d) Wi-Fi
39. 39.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
40. 40.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?

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