Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 921 · 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 “the cloud stores it”? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
2. 2.🌐 In an IoT system, which part measures the real world? (a) sensor (b) cloud server (c) phone app (d) Wi-Fi
3. 3.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
4. 4.🔍 Which is the odd one out? (a) a pencil sharpener (b) a smart energy meter (c) a Wi-Fi smart plug (d) an app-controlled bulb
5. 5.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
6. 6.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a plain table fan (d) a Wi-Fi weather station
7. 7.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
8. 8.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
9. 9.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a plain wall switch (d) a Wi-Fi weather station
10. 10.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a pencil sharpener
11. 11.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a plain table fan
12. 12.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a Wi-Fi smart plug (d) a battery torch
15. 15.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a smart energy meter (d) a plain table fan
16. 16.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
17. 17.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) an app-controlled bulb (d) a paper calendar
18. 18.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a paper calendar
19. 19.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a plain wall switch (d) a smart energy meter
20. 20.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) actuator (c) phone app (d) sensor
21. 21.What does the sensor do? (a) reads values, decides (b) acts on a command (c) carries the data (d) measures the real world
22. 22.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a wind-up clock
23. 23.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
24. 24.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a wind-up clock (d) a Wi-Fi doorbell camera
25. 25.Which of these is not an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
26. 26.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) the app shows it (b) it is sent by Wi-Fi
28. 28.What does the Wi-Fi link do? (a) carries the data (b) measures the real world (c) reads values, decides (d) shows data to you
29. 29.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
30. 30.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
31. 31.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
32. 32.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the board reads it (c) the cloud stores it (d) the app shows it
33. 33.🔍 Which is the odd one out? (a) a battery torch (b) a smart energy meter (c) a Wi-Fi smart plug (d) a fitness band with app
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the sensor measures (b) the cloud stores it
35. 35.🌐 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
36. 36.What does the actuator do? (a) stores data online (b) reads values, decides (c) carries the data (d) acts on a command
37. 37.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
38. 38.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
40. 40.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?

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